thanks for the feedback everyone, it's very encouraging!
I'm currently working on a "community site" for the game, so that players can share levels and replays easily. It's mostly up and running now, you can check it out at the link below. It's a shame I can't let the Xbox 360 version connect to the internet, or I'd add a way to push and pull files from the 360 directly... but for now it only works for PC users who upload and download the files on their own. It's been good practice at php for me, this is the most complicated website I've designed to date :)
http://walaber.com/gymnast/community--EDIT---
ALPHA 04 RELEASEDhttp://walaber.com/gymnast/Gymnast_Alpha_04_install.exechangelog:
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== CHANGES in Alpha 04 ==
1. Fixed error that caused unreadable replay files when overwriting an
existing replay with a new, shorter replay.
2. Fixed error where last trick score was not being added to total in
challenge mode.
3. Game now remembers selected characters, levels, and replays, and menus
default to previous selection now.
4. Added bonus for completing a Challenge mode level without using "slo-mo".
you get a substantial bonus (x1.25) for this now.
5. removed the overlapping display of text "GRAB" and "GOAL" when
finishing a level.
6. added the ability to zoom out and view an entire level by pressing
the Left or Right shoulder button when playing, and also by pressing
the Left shoulder button during a replay.
7. Fixed a bug causing tricks to not be registered properly, and made
gymnastics mode also feature the "no slo-mo" bonus multiplier.
8. built Community website for sharing levels and replays:
http://walaber.com/gymnast/community
9. Added 2-4 player same-screen co-op! plug in several controllers and
go- the rules are the same as challenge mode, but with multiple gymnasts.
if anyone grabs the goal bar, the level is complete. gymnasts can only
grab other gymnast's hands and feet.
Levels created in the level editor are automatically sorted into the
proper modes, depending on the number of gymnasts in the scene.
10.Added sound effects and music. Sound effects play during replays as well.
11.Added confirmation screen when quitting the game.
12.Fixed some timing-related bugs that could cause errors when previewing
levels in the editor.
13.Added the ability to endlessly extend "slo-mo" time by clicking the
analog sticks again. Also added a visual timer on-screen when in
slo-mo mode.
Go Go Gadget XNA!