Map the D-Pad for movement (Sonic is precise), but also map the Left Analog Stick. Some homebrew levels require analog movement.
It is crucial to distinguish between the emulator and the game. PPSSPP is entirely legal; it is a clean-room reverse engineering of the PSP hardware. However, the ROM— Sonic Mania Plus for PSP—exists in a legal void. Sega has historically been tolerant of fan games, even celebrating some, but they retain the right to issue takedowns. Distributing a full ISO of a game that uses Sega’s trademarked characters and music is technically copyright infringement. sonic mania plus ppsspp android download best install
But Sonic Mania wasn’t released on the PSP. So how does this work? Talented developers in the Sonic homebrew community have created — a fan-made conversion that runs natively on PSP hardware (and thus, PPSSPP). This demake captures the spirit of the original Mania Plus with pixel-perfect physics and all the bonus characters. The Ultimate Guide: How to Download and Install