I dodged enemies for a few minutes, and let them pile up, then with 1 shot I went straight to the final boss.
It did get quite laggy with the mass death.
I hired someone with nearly all 5 stars after winning the first division, and he is quit overpowered. I get the ball to him and run circles around their players.
Once you have all the abilities maxed: Launch as high as you can, max power rocket to one side, go afk.
You literally will still keep climbing due to platforms indefinitely.
no levels are impossible, yippee. I finished the game in one sitting, and am now messing with bonus mode. While you say 20 and 25 are both impossible, I've done both in reg and bonus modes.