Yeah, much better! I thought you gave up...
These levels have a lot more variety, are more possible, and have some good long stretches instead of only randomly-placed blocks.
Here are some future challenges to you. If you could get these working reasonably well, you'll officially have godlike powers!
* Working tunnels that don't just end, have holes underneath, or have walls at the end.
* Special blocks.
* Decorations like clouds.
* Better variable gravity (100-1000 maybe); perhaps low gravity levels would have longer jumps.
* Atmosphere settings porportional to the level length and/or the distance between oxygen blocks/rings.
* Premade portions of track so that certain features could be added. Ie: warp gates, big L-corners, stairs, lava/oxygen pits, special jumps, ring jumps, variable level starting/ending types, safe places for checkpoints, etc...
* Oh yeah, level ends usually should have tunnels before them so that you don't miss the colission area.
* Different backgrounds besides "earth"
Hehe, I'm sorry if this sounds like complaining or demanding in any way. I think you've done some great work, work that I probably couldn't have done myself (or at least in the short amount of time you did it in). Yeah, I'm leaving tomorrow for awhile (almost a week), but don't hesitate to ask me for any help if you need it.