on this one level the challenge was beat the level without taking more than 30 damage you should let the health power up help you like if you lost 50 damage and you gain it back it should count as beatig the challenge
this game is really good and stuff but the oly thing is the challenges are really hard i dont no if theyll get easier when u get better upgrades or not cuz im in the second planet but try and make the challenges easier if u make another game like this :)...........(i wrote this because i wanted a developer response i actualy thik this game is awsome!!!! please responce to me
10.