I decided to test the exe on a variety of machines! Here's my results:
My Laptop (and my main computer :) )
Windows 7 64 bit
Intel i7-720
6GB RAM
Nvidia Geforce GT 330M
Results: Works quite well. Frame rate is solid. Everything works correctly.
My Custom Computer Build
Windows 7 64 bit
AMD Phenom II X2 555 (3.2GHZ)
4GB RAM
ATI Radeon HD 4250
Results: Same as the above. Works very well. (Also, Super Ubi Land looks great on lower resolution monitors! :D)
Older Vista Desktop
Windows Vista 32 bit
AMD Athlon 64 X2 3600+
3 GB RAM
NVIDIA Geforce 7300 LE
Results: Frame is somewhat acceptable. Faced problems with collision detection (i.e. jumping on enemies to kill them). Music doesn't start immediately, but it works when it does.
...it really ought to work on any modern desktop computer at all, using Windows XP SP3 and newer. (Watch out for the odd user still on XP SP2.)
Hmm...
I'll be the judge of that!
Ancient XP Desktop
Windows XP SP2
Intel Pentium 4 (2.8GHz)
1 GB RAM
Intel 82865G Graphics Controller
Results: Crashes on startup.
(OK, I guess you were right :P)
(Incidently, this computer takes like 15-20 seconds just to open the start menu! :D)