I got a problem a little like AirAngel: it is: I buy the charged jump at the Outhouse, then I die, load my savegame, and have no charged jump, while the outhouse catalogue says it's purchased, so I can't buy it one more time.
Besides, the game is just great and I'd be happy to see next parts or something longer based on the same engine. The controls are really tight and the whole game's just fun to play.