Treasure of Shambala

Every now and then I find a mini-game I made a few years ago, but then forgot about it. This one was supposed to be the level 1 of a broader treasure hunting game, checking the area with a chopper, get aerial photos and find some ruins, while being attacked by dragons that exist - of course - only here, near Shambala. The terrain is looping seamless, hence it is endless. The trees are a single surface mesh. This thing renders with playable framerate even on very old machines. However, its just a...