Koules 1.16 OS4 port (small bug on GCC optimize routine?)

During our Koules 1.16 port I think we have found another little bug on GCC optimizer routine (i use standard GCC 4.2.4 availible on latest public SDK)
The game will compiles perfectly but the pause functionality have a problem when compile the game with -O2 optimize, you need to continue to press
the "P" key to pause it normally, so for now we choose -O0 to compile (no optimize) and all goes ok.

Please can you test for us both archive and tell me if you are see any difference when pausing the game ?

http://aminet.net/package/game/actio/Koules_OS4
(This is the version compiled with -O2 optimize and contain bug in pause)

http://os4depot.net/?function=showfile&file=game/action/koules.lha
(This is the version compiled with -O0 and works ok)

Also the speed of the game in general are the same for you ?