you need to take some writing classes. Also, read a few books about writing.
also, create characters that are not recolors.
I can already tell that this is a bad idea rapped up with decent sprite animation with a bit of star power (omahdon) and that is about it.
As Ethernia said before, "nothing to new or interesting"

I found myself forgetting the characters even 10 seconds after I had watched the video. Mostly because I can already tell even by looking at the character descriptions that calling these characters card bored will probably be an insult to the packaging materiel.

So far all the heroes are directly following the stereotypes and cliches. There is nothing new here. Only old stuff that I can already say will be submitted to the portal, raved about because it has Mario and sonic in it. Then forgotten in the hoards of other stuff exactly like it.

Here's what you need to do. You need to forget about this series. Forget about all the plans you had for it. Call it off. Spend your summer doing something original. Take a creative writing class. Do something that doesn't involve Mario or Sonic or some other character or series that has been done to death.

I know you are probably thinking, "but I have some original ideas that would probably be good". Yes you do. But not involving Sonic. You probably could come up with something amazing if you tried. But first you have to grow out of this "Sonic and Mario" stage. Make something original!

Kick this crap to the curb. You've grown up, your a better animator then this. I don't know how many animators on this site that have so much talent, waist their time on stuff like this. You are not going to revolutionize anything or set the world on fire with yet another alternate version of a segaXnintento world. If you look at the movie industry... hell if you look at any creative industry, there are billions of clones when something gets popular, and that's what your creating. A clone, weather it be a clone of dragon ball z, or a clone of sonic, it's a clone. It's copypasta, it's UNORIGINAL.

anyone can do sonic! ANYONE! look at the billion of sonic fan made videos and Mario series around you. do you really want to swim in this sea of mediocrity? and even if your video stands above the rest and you actually achieve something, what then? it's still just a crappy spin on Mario and Sonic. While stuff like Waterlollies and Metropolitan circuit are standing above the rest. Things like Xombie and Mastermind and Tankmen! original stuff that we all compare everyone else's stuff to.

if you created something original it could have the chance to become iconic like these characters. If you created an original story, with a pleasing ascetic and likable characters then you would have accomplished something instead of creating a story of the likes a 12 year old boy could have shat out.
I suppose the TL; DR version of this would be:

Please for the love of god man, don't waist your talents on something so unoriginal and trivial, Newgrounds has enough stuff like this. Make something original! and even if it's crap and you think you could have done better with the idea you had for Mario and Sonic, know that the next idea you execute will be better! and that the path to originality, while being a difficult one, is much more rewarding in the end. You don't see Alvin Earthworm or Johnbro gaining the iconic status of Egoraptor, or TheSwain or Adam Phillips do you?

Also please note that, I am not, I am simply saying you can do better and that this is a horrible idea. the Constructive criticism being me telling you to pursue something original. Also, if you are going to come back with the whole "this is just practice" Bologna, i say Bullshit. You are never going to go anywhere just practicing. If people in the army just practiced and never actually fought the enemies, people would lose all the wars that they were ever involved in.

So, if you actually read this review, I hope my long winded criticism has given you something... lol had to laugh at myself there, you're not going to take this seriously

Animation was decent to mediocre at times, though some of the sequences showed promise. I dislike how all the characters look like some wapanese person's attempt to draw super deformed anime... It struck me like it was trying to get into the Anime section a little to hard...

Characters were cardboard, Tardis was the only good one mostly because he was voiced by Tomar. The girl struck me as the most cliche though. (I hate to say it but she was the worst character, she reminded me of the girl gamer/action girl cliche and she was by far the flattest character)

Story was your standard apocalypse thing... I liked the twist that life went on without much changing other than the danger factor, though everything else wasn't very good.

Voice acting was great, 'cept for the girl voice. Her voice sounded emotionless and flat, also it was way to generic. That could just be the lack of quality female voice actors on Newgrounds though... (not being sexist, other than Rina-chan, name one great female voice actor on Newgrounds... )

the jokes were pretty bad, 'cept for a few of them that were the reason I kept watching. But the family guy style flashbacks seemed out of place in a series like this.

honestly the entire thing just draaaaaaged on. I found myself only watching it so that I wouldn't feel like I cheated when I reviewed it... and to hear what Tardis was going to say next.

but really, this just seemed like it was trying waaaay to hard and reminded me of Naruto for some reason...

I thought this animation was mediocre, the voice acting by Omahdon and TomaMoto was the best thing about this one...

I feel bad leaving a review that doesn't say something positive at the end.

good effort, I look forward to seeing your next flash animation, I can tell your skills have improved since your last animation. Great voice acting too (Omahdon and TomaMoto)... great music as well, forgot to mention that one.

Like Malkontent said, This game had the potential to be a lot more than it was.

I liked the music, aesthetic and the characters.

Wasn't too crazy about the voice acting or the plot,

the controls were just terrible and the enemies and challenges tended to repeat themselves... also, the fact you had to start the level over again when you died... but then again the levels were short so I suppose it balances out.

This game is good, but that's all it is just good. It isn't great and it isn't bad, I can't really say I didn't enjoy it, at times it reminded me of some of the old NES games I used to play in which you had to restart a level if you missed a single jump and I like that, nostalgia is good, but it is also annoying.

but overall I liked this game.

You my friend, i cannot express how awesome you are.

the voice acting was perfect, nearly everything was exactly like it should sound, a bit off here and there but that can be forgiven for how amazing the rest of it was.

Good job dude.

sounds like you are using a vocaloid for the vocals... are you? I can't really tell...

it's a pretty awesome song bro!

But that fuzzy bit at the end was a bit weird... I liked it though, I thought my headphones were getting jacked up at first but then I got into it. It was pretty cool... I dunno man, I can't really critique this 'cuz there wasn't anything I didn't like about it. But then again I actually like really high voiced singers, others might not but I dunno, personal preference.

I like how you remixed the Girl from Ipanema tune... It is quite minimalistic as you say, but it has a very cafe jazz feel to it. I like it.

one thing though, It be nice if you said that you were remixing this song, that way people could hear the original and compare your remix to it. It makes a nice song on it's own, but an even better remix.