Syobon Action Online UWP for Windows

Quick summary

Syobon Action Online UWP (commonly called Cat Mario) is a free 2D platformer that parodies classic Super Mario-style levels by intentionally designing traps, fake exits, and surprise hazards. It pairs retro-sounding MIDI music with deliberately unfair level layouts to create a comedic but punishing gameplay loop built around trial and error.

Gameplay and design

This title reimagines familiar platforming tropes into bait-and-switch encounters: blocks that disappear, monsters that appear where you least expect them, and environmental traps meant to punish assumptions. Progress often depends on memorizing patterns and reacting quickly after repeated failures. The result is a short, sharp experience that rewards persistence and precise timing rather than steady, casual play.

Online features and multiplayer

Syobon Action Online adds cross-platform multiplayer so you can play with others and share in the chaos. Sessions often become competitive or cooperative spectacles—players race, troll one another, or work together to overcome the most absurd obstacles. The multiplayer twist amplifies the tension and laughter that comes from unexpected deaths and sudden level gimmicks.

What stands out

• Unforgiving, cleverly hidden traps that subvert platforming expectations
• Nostalgic MIDI tracks that echo old-school platformers
• A multiplayer mode that turns frustration into social entertainment

Trade-offs and limitations

• Requires an active internet connection and a Microsoft account to play
• The intentionally unfair mechanics can alienate players who dislike repetition
• As a free-to-play title, access depends on online availability rather than offline ownership

Who should try it

If you enjoy games that prioritize shocking, laughable failures and the satisfaction of overcoming absurd challenges, this is well suited to you. Competitive platforming fans and players looking for a shared, chaotic experience will likely get the most out of it. Those who prefer forgiving or narrative-driven platformers may find it frustrating.

Alternate pick

If you want something similarly tense but with a different flavour of horror and puzzle, consider Mr. Hopp’s Playhouse 3 (free). It swaps platforming masochism for suspenseful exploration and jump-scare moments while remaining accessible to players who enjoy short, intensity-focused experiences.