Non-sticky upgrades, have to buy each time. Armor gives 3 ablative hits, no way to get them back - least useful upgrade. Gun upgrade is best, then grenades, then magnet.
Only a few complaints...
The "Wrong" that comes up if you don't succeed... even if you have the right solution but randon chance means you don't get it (what's funny is when you run a solution and it comes up)... which is the second complaint; I mean, random chance that the ball doesn't fly far enough to get into the bucket one time, but does the next... Third there's the solutions that don't work, tho I've found that if you re-create the solution you can get it to work... 2/5
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