I finished Super Mario Land 1 + 2 and Super Mario Brothers 1-3 (All Stars on SNES) decades ago and recently again. I just started Super Mario World for the first time in my life (yes, I know), and I find the controls irritatingly hard to master. Especially with the Feather power-up and Yoshi. I constantly jump off of Yoshi and send him into the depths of the netherworld. I wonder if this gets better, but right now it's very frustrating, especially compared to how well SMB3 plays on the SNES.