Documented for this version
Which controls does this version use?
Actions
Keyboard | Use the NES emulator mapping for movement, jumping, running or action, menus, and pause. Follow the loaded Sonic in SMB1 v2.5 prompts for exact assignments. Verify the loaded Nintendo Entertainment System (NES) build instructions when the public sources do not provide a complete control table. |
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Control notes
The loaded Nintendo Entertainment System (NES) mapping takes priority over generic labels.
How it plays
How does Sonic in SMB1 v2.5 play?
Run and jump through the Super Mario Bros. 1 stages as Sonic, collect items, avoid enemies, and reach the level goals. The movement, sprite, and physics behavior comes from the loaded v2.5 patch and may differ from both the original SMB1 and official Sonic games.
Plan your run
What is the best way to play Sonic in SMB1 v2.5?
Test Sonic's acceleration, jump arc, and any spin or action behavior before using an original SMB1 route. Preserve a state before difficult jumps and check the v2.5 title or readme instructions for changed collision behavior.
Community discussion
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