Platform issues!

[01lifeleft]

Can someone please check my game? I don't know how to fix the problem with active object and backdrop.
http://www.mediafire.com/?9e4iads1yicws2b

the exe version:
http://www.mediafire.com/?ymk06qf038curcb
btw object moving with WASD.

[Algul]

here http://www.mediafire.com/?mykekz8cytqa3ey
things I noticed and changed:
backdrops were set to "platform" not "obstacle"
actual player was set as object for platform extension...that is bad as "players" is animated and trying to check collisions on anything animated will lead to problems when one animation frame does not collide and other does
changed jump str values, holding jump key in air was stronger then gravity

[01lifeleft]

sorry for slow reply, i'm not allawed to use computer at night.

Awesome, thanks Algul! xD

EDIT: There's something wrong with crounching down animation, don't know where is the problem
http://www.mediafire.com/?0vm9s6j5rhfvo8t

[Algul]

check hot-spot of crouching animation images, hot-spots need to be at the same position as other images

[01lifeleft]

Thanks again! Now it's works perfectly. xD