you have a good idea with very poor execution. i love games like this but yours...ugh. first off, you are bugged up pretty badly. fuel canisters are not touching but seem to be a part of my craft(complex issue with the tool bar in your game) because they bang into an object and affect the way my machine moves therefore i gather it is attached but not by any visible means. another big problem is when the player reaches the desert climb level, every machine i build required me to start the level and then reset the level before i could set the engine controls. also, the things you refer to as bases need some tweeking(maybe stiff joints as well as loose joints as well registration marks to tell you how long or heavy a given member happens to be). i can make more points but my last is that you offer a piston engine on the outer-space level and i don't have any wheels available to me. ?