This looks like it could be a very good game - if there were other players.

i like it, but i can't find no player

Is this supposed to put several players in a fight at once? if so there is not much game for only 1 person.
the map slowly zooms out a few pixels every 5-10 sec.
if you could set up either bots to fight or 2 player from 1 screen then it could be played.
right now the only thing to do is try to get as close to the edge without falling as i can.
I like what you have so far but to me this is not a game yet.

the game is fine, but i feel like the world getting smaller and the fact that there is no music and no sound except when the tank is shooting

it's an okay game, not terrible, not masterpiece, just okay.