Mads: Thank you! its really quite simple, so simple that I wouldn't call it 2.5D more 2.25D. Basically, the scale of the object draw depends on its distance to the player, and the x position on the screen depends on the objects angle to the player.
Tim spekler: Thank you for your feedback! To be honest, I was thinking the same, also the GUI doesn't look "scary" enough, I think i'll change to colour scheme.
Ultroman: hmmmm, very strange, I'll shall definitely look into it.
Thanks all for playing!