Board Thread:Plants vs. Zombies Heroes/@comment-26988423-20170802073712/@comment-10857070-20170802181646

It took me 5 tries and some help from Elemec, the solution is:

Escape through Time on Space Cowboy

Area 22 on Red Plant-It

Final Mission Garg Throwing Imp and then Galacta Cactus

Final Mission Deadbeard and then GK

And then Smoke Bomb Space Cowboy to heights.