Cave Convoy is a Power Miners themed online game in which the player controls a convoy of Power Miners vehicles and steers them through a series of dangerous caves. The objective is to collect crystals and avoid damaging or losing the convoy. There are also obstacles in the player's way, including large rocks, smaller rocks, Rock Monsters, and pits. The game includes various cheats as well. let me know if you want some!
You can plays this game at : http://biomediaproject.com/bmp/files/LEGO/gms/online/PowerMiners/CaveConvoy/