Fantasia is viewed from the side. The objective is to move through four elemental areas, locate and collect the missing musical notes, defeat or avoid enemies, and reach the end of each stage.

Mickey can walk, jump across platforms, and use magical attacks against threats. Stages contain hazards, vertical sections, and collectible objects that make careful exploration important. Progression is based primarily on completing the themed areas and recovering the notes rather than on a branching map or character upgrades.

Take time to learn enemy patterns before advancing, especially near narrow platforms and moving hazards. Avoid rushing through unfamiliar sections, since missed notes and damage can make later parts of a stage more difficult.

Use magic selectively and keep a safe position when enemies approach. Explore upper and lower routes when possible, but prioritize survival over collecting every item in a dangerous jump.