Freedom Planet is a 2D platformer developed and published by GalaxyTrail

You play as a purple dragon girl named Lilac who has to stop the villainist Lord Brevon from taking over her planet and the entire galaxy

Gameplay and aesthetic is based on the works of old school 2D platformers from early-mid 1990's like Gunstar Heroes & Sonic The Hedgehog

Here's the Steam page: https://store.steampowered.com/app/248310/Freedom_Planet/