Games you remember playing but can't remember the name

[grendel]

I used to play the game with my friends 10 - 12 years ago. (I was 10-12
years old). There is not too much in my mind. Here are the properties;



* PC Game

* 2D Graphics (Not Sketch)

* Platform game

* Multi-player supported

* There are two characters. They are like small-sized trolls. They are both green. (Light and Dark Green)

* You walk and jump on the layers made of stone or wood (I can't
remember that much) But it is not a climbing game like Ice Tower.

* The aim of the game is to kill the creatures walking on the layers.

* Limited-Duration booster items appear but I can't remember when. Randomly, after killing enemy or breaking the layer???



Thank you all