I was using Sparky Collisions but I got a problem, see post :
http://forum.thegamecreators.com/?m=forum_view&t=169622&b=1 Then I decided to move to DarkPhysX to achieve Bullet-casting and ray-casting to give the player the ability to shoot but I think that there is a lack of commands in the Dark Physics/Rigid Body/Raycasting section
for example I've tried to check collisions against the level object: it worked, using Raycast BUT when I tried to check collisions against 'enemies' objects, I failed just because I don't have enough commands to determine which group of objects I want check:
even sparkly has many more functionality for collisions checking!