So whenever I move a little over 50ft Bowser either no scopes me(I think he's using an aim bot because there's no way he can do that all the way across the level.) or he noob tube's me. Then because he killed me so many times he kills me from an enemy air strike which leads to an enemy chopper and finally a tactical nuke nuke which ends the game. So is there anything I can do to stop getting rekt? 

you will find Gaben he'll talk to you take your money

But I don't have enough money to pay full price or at least close to it for power ups.