WormHole  
I liked it! It does just what it is expected to do, and that's very satisfying. However, the animation was quite laggy/jumpy on my PIII 600 MHz; I would have expected a better performance from such a simple demo. But anyway, the beautiful result is definitely worth the trouble.

X Massive Defense  
This game could use a lot of work, but it's very addictive as it is. :) I loved the easy and open-ended gameplay. It has it flaws, though. No ending, the last levels are too easy, and you can't upgrade anything to level 10 but you still lose $1000. It's really fun to play, but doesn't feel complete.

Zep's Dreamland  
I spent the whole afternoon playing it. :) The font and graphics are way too big for my taste (Zep's portrait in the tutorial, for example) and the text is so slow I skipped the tutorial, but the gameplay and level design are awesome, better than many professional puzzle games. Great job!