PonyHop - Please betatest!

Link to download (~200 kB executable; use your own virus scan before running - just in case) I need some feedback on the following points:

• gameplay - is the game too confusing? Too many colors? Too few colors? Too slow? Too fast? Not enough explosions? Not enough boobies?
• crashes - I didn't manage to crash it myself, but there's always a first time
• "finishability" - does the game produce situations that are not solveable? I haven't seen any (but there's always a first time)
• new name for the game - PonyHop sounds just stupid
• I do NOT need feedback on the interface right now - I already know it's crap... not to mention unfinished.

Some of you may have noticed my previous thread asking for some assistance on the dispersal algorithm for obstacles, which I finally figured out - it's not very fast (although due to the game fields being small, new level creation should be close to instantaneous), and it's not the best, but it is geared towards highest map complexity (fewest paths to any given goal) and 100% solveability (there should be no case that cannot be solved). HOW TO PLAY (and where to click) THE GOAL: mark all bright blue squares as dark blue by moving around in knight's moves (if you've played chess, you'll know). Introductory indicators on where you can step next are shown on the Lame and Easy game difficulties (unless disabled from the settings dialog). Just like in Minesweeper, click on any bright blue square to start out. Initially you'll be playing on Normal difficulty - you can change the difficulty under Game->Settings. F2 works. EXPERT DIFFICULTY is different from other difficulty settings - instead of just having to rape and pillage, you'll be fighting with already captured squares (dark blue) turning bright blue again. You lose one (random) square every 5 seconds. I find this difficulty setting strangely addicting, not to mention grossly infuriating. THE STATISTICS: make notes of your stats when you finish a game - these aren't saved yet! You'll be popped with an error message (!) showing four kinds of stats:

• Number of hops: how many times you moved
• Time in seconds it took you to finish the game
• Hop efficiency: ideally you'll step on each square only once, running at 100% efficiency. As soon as you step on a square twice, you'll be losing efficiency.
• Score: the following formula is used: (time taken / efficiency) * 10 / (difficulty^2) The scores you'll get on different difficulty settings aren't coherent and shouldn't be compared.

SETTINGS: all available settings (apart from the game type, which you can't change) in the settings dialog work. Press OK to accept, or Cancel to discard. The settings dialog has no caption, but is dragable. That's it I guess. Please take time to check it out and let me know if you spot something that could be better - right now I'm mostly looking for crash and error reports, although all suggestions are welcome. Thank you! edit: Incidentally - my personal best for Expert difficulty: 249 hops 136 seconds 40.32% efficiency score 134