New guy interested in dev'ing for App store

[PSMOkizzle]

hey there, im new, and interested in becoming a dev!
i'd like to create mostly 2D platformers/sidescrollers/adventure type somewhat open-ended games.
but a while back, i heard that Apple charges u $100+ to become a dev.
is that true??

if it helps, i've had experience in the MUGEN engine, so im not a ttotal stranger to coding, so what engine(s) would help me most in the 2D department in terms of it being easy to work with and looking professional at the same time?

any help is appreciated, thanks in advance!