At first I was unsure of what to do, but after swinging for a while I figured out, that you have to enter the crater. Sadly I was unable to get past the first lvl more than once since I just didnt manage to aquire 50 flys and enter the crater again with the amount of swings. Overall it was interesting and played nicely, it's just that I found it somewhat hard. Its a good game.
Viewing post in Chezzz - The Floating Spider jam comments
You can see the controls in the game when you click on the icon on the right hand side.
You can move with WASD while you swing to control yourself a bit.
I think that's why you had problems gathering the 50 flys, since the first 2 levels are the easiest part of the game.
But the last 2 stages are actually hard though.
Let me know if there's anything else you've trouble with.
Thanks for playing!