Best gun and perk i found helped most to beat the final boss was the snake handgun and no recoil perk. The snake helps you take him out quickly and no recoil helps you stay on the stage. Also try to stand exactly where he is until you can get a gun so he can't shoot you. Don't try to jump to avoid his shoots, shoot to make him jump. Try this and you might be able to pull it off.
I found this game incredibly fun to play, the controls are a great idea and if people would read the tutorial they would know how to buy upgrades. My only problems are that it seems to lag at times and it seems that the physics when getting hurt are a little much, especially on the tentacles on level 4 where they sent me all the way to the spikes 3 times. I would give this game a 4/5, but seeing that for some unknown reason it only has a 2.67/5, I'm going to rate it 5/5 to get the rating up. (P.S. i played it on Max Games to see the cut scene and I've got to say it was Awesome!).
This is not a remake or ripoff of Bubble Trouble. It is a CLONE of pang which was made in the 80's and remade later. If you read the description you would know it isn't a ripoff. Very fun by the way. 4/5
 "Gun Mayhem"){kind=icon}
 "Game Development Room (GDR)"){kind=icon}
 "SandTest"){kind=icon}
 "Death to the sun's enemies"){kind=icon}
 "I Am An Insane Rogue AI"){kind=icon}
 "Music Catch 2"){kind=icon}
 "Snowball's Last Stand"){kind=icon}
 "Santa Rockstar: Metal Xmas 3"){kind=icon}
 "The What The Game"){kind=icon}
 "Epic Combo!"){kind=icon}
 "Legend of JOHNNY"){kind=icon}
 "iZZi"){kind=icon}
 "Robot Wants Ice Cream"){kind=icon}
 "R.P.S. Addict"){kind=icon}
 "GunBot"){kind=icon}
 "Recordshop Tycoon"){kind=icon}
 "Super Pang"){kind=icon}
 "I HATE ICE LEVELS"){kind=icon}
 "House Idle PRO"){kind=icon}
 "Mandrake"){kind=icon}