Spider Evolution 3D

needs a tutorial or something, it's not really clear what I'm supposed to do (including what evolving or getting higher level pieces for your spider actually do). so much is left to the imagination I actually restarted my entire game thinking I missed helpful tips. maybe a detailed list for what each piece does other than cosmetic changes to make my spiders legs or mouth bigger would be nice?

I purchased the permanent double shot, and I still have to watch ads to get it! Just a bunch of thieves! I have a screen recording to prove it! Fix this issue, and i will fix my rating, and redact my previous statement.

Total B.S.! the ads that i watch voluntarily almost always freeze and do not reward! I paid for no ads, yet the frequency for decent upgrades is down and the people run super fast getting away on every run. the people that made this Sick Duck, the game is alright, but the devs