Meh. Not too bad... it would be really cool if the action was more fast-paced, and the entire tunnel was walkable ground, I.E. you could walk on the ceiling or walls...
An easy way to do this.. if i can remember is to have a center dot and have your charactor always look at the dot... then have a counter that when you press left and right it adds and subtracts from it (with the event =0 set n, =n set 0 (n is how many places)) then just add the placement events, when at 6 set at x,y when at 30 set at x,y (set around in a circle thing.
It's down. But I know how to open it: Copy one of the GOX files and rename it to FRRESO.GOX. Then remove every events that contains that FRRESO thing. (it looks like that GOX you copied, example if you copy DRAWLINE.GOX, FRRESO looks like the DRAWLINE.) FRRESO is not important for the engine, it just changes the games's resolution. (that's that RESO.)
I hope I helped someone.