Psycho Fox
Psycho Fox — frequently asked questions
- What platforms is Psycho Fox on?
- Psycho Fox was released on Sega Master System/Mark III.
- When did Psycho Fox release?
- Psycho Fox was first released on December 1, 1989.
About Psycho Fox
Psycho Fox must get to the right hand side of the level. However, there are many enemies in the way. He can use a Shinto stick to change into characters/animals like a hippopotamus, a monkey or a tiger, each of which has its own special ability. The hippopotamus is slow and cannot jump very high, but can punch through special destructible blocks in the game world. The monkey can jump higher than the other creatures and the tiger can run faster. Psycho also has an ally named Birdfly, who can be used as armor or as a boomerang. If Psycho is hit while carrying Birdfly, Birdfly goes away and the player does not lose a life.
Summary via IGDB.
Game details
- Developer
- Vic Tokai
- Publisher
- Sega
- Themes
- Action
Details via IGDB.
Reception
Every version compared
Prices, contemporary reception and the studio credited for each release
| Platform | Year | Loose | Complete | Sealed | Period reviews | Fake risk |
|---|---|---|---|---|---|---|
| Sega Master System | 1990 | $45 | $86 | — | 6 reviews | Low (look-alike) |
Also released on: Sega Master System/Mark III. We haven’t priced or authenticated that version yet.
Collector value & authenticity
Sega Master System · PriceCharting sold data · Verified 2026-10-28
Other releases and variants
| Release | Loose | Complete | Sealed |
|---|---|---|---|
| European (PAL) release | $23 | $52 | — |
How often it sells
- Loose: about once a month
- Complete: about once a week
- Sealed: about once a year
Sales frequency from PriceCharting's completed-sale records, as of 2026-10-28.
Price over time
- Loose
- Complete
A loose copy sold for about $11.97 in Jul 2009, $73 five years ago, and $45 as of Oct 2026.
Show as table
| Month | Loose | Complete |
|---|---|---|
| Jan 2010 | $22 | — |
| Jan 2011 | $16.49 | — |
| Jan 2012 | $18.27 | — |
| Jan 2013 | $19.99 | — |
| Jan 2014 | $25 | $43 |
| Jan 2015 | $25 | $50 |
| Jan 2016 | $29 | $60 |
| Jan 2017 | $32 | $59 |
| Jan 2018 | $39 | $72 |
| Jan 2019 | $43 | $58 |
| Jan 2020 | $39 | $50 |
| Jan 2021 | $60 | $75 |
| Jan 2022 | $67 | $100 |
| Jan 2023 | $65 | $92 |
| Jan 2024 | $42 | $82 |
| Jan 2025 | $55 | $81 |
| Jan 2026 | $51 | $86 |
| Oct 2026 | $45 | $86 |
Monthly price estimates from PriceCharting's completed-sale records, sampled quarterly, through Oct 2026.
Release record
| Territory | Date | Product number |
|---|---|---|
| North America | May 1990 | — |
| Europe / PAL | December 1989 | — |
| Brazil | 1992 | 026.340 |
- Region
- NA+EU+BR
- Released
- 1990
- Authenticity
- Low
A lively platformer that British magazines ranked among the best on the system, and one of the better-regarded European carts.
Psycho Fox is a platform game developed by Vic Tokai and published by Sega, released in Europe in December 1989 and in North America in May 1990. Tec Toy later put it out in Brazil in 1992 as Sapo Xulé: Os Invasores do Brejo, with the hero replaced by the cartoon frog Sapo Xulé. That is an official Tec Toy release.
Mean Machines, looking back in 1992, said its extra rounds and hidden bonuses made it probably the greatest all-out arcade platform game on the Master System. S: The Sega Magazine described it in 1990 as one of the best games for the Master System.
How it was made
Developed by Vic Tokai. Shoji Suzuki is credited as programmer, and Fumito Tamayama and Hiroto Kanno as composers.
What the press said at the time
| Mean Machines Games Guide | May 1992 | OVERALL 90% |
| AllGame | 3.5/5 | |
| Electronic Gaming Monthly | 7/10, 7/10, 7/10, 7/10 | |
| Console XS | 88% | |
| S: The Sega Magazine | 93% | |
| Sega Power | 93% |
“Psycho Fox ranks as probably the greatest alf-out arcade platform game seen on the Sega Master System, Need we say more?”
“Featuring plenty of extra rounds and hidden bonus¬ es, Psycho Fox ranks as probably the greatest all-ot arcade platform game seen on the Sega Master System. Need we say more?”
Undated scores are from the review table in the game's Wikipedia article, limited to reviews of the Sega Master System version.
Before you buy
The European cart is much cheaper than the US one, loose and complete, so it is the economical choice unless you specifically want the American box. The US cart sits well above the middle of the US carts when loose. The Brazilian Tec Toy edition is a separate release with the Sapo Xulé theme. The look-alike risk is low. Check the manual is present, since it is the part most often missing from a complete copy.
Psycho Fox screenshots
Watch on YouTube
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