Very nice (classic) game. I like the finished feel of the game and the scoring system. Maybe you can add some visual effects like flying pawns when level starts or finishes.
My only criticism is the look of the pawns and rings. They are quite 'pixeled'.
I tried to make low poly models for speed and simplicity. But the result of this effort is pixelled models. Also i think there is a problem with the texturing that i cant control.
There aren't any additional animations because the fps of the game already low, i think i should change the game loop with a time dependent game loop.
Another problem is, with some gfx cards, particle emittors and graphics aren't working as they have to ...