if this was your first game, its ok
your probably geting angry emails because there have been many dbz related fan games, and just like the offical ones they havnt been worth anyones time. what you should do is just remake this and add the guys animations(flying and shooting his beam). because seriously, if you dont want to, you should have just made a space shooter.
with that said, the game is also very short for some reason. you get 650 and game over? thats just not right. i think its best to stay away from anything dragon ball related, try somthing original.