SteamGear Mash[a] is a 1995 action run and gun video game developed by Tamsoft and published by Takara for the Sega Saturn.

[4] Readers of the Japanese Sega Saturn Magazine voted to give the game a 7.1546 out of 10 score, ranking at the number 609 spot.

[17] As for import reviews in the west, Sega Pro called it a "cutesy platformer with plenty of unique features".

[14] GameFan's three reviewers variously gave praise to the game's "rich colors", "supreme attention to detail", the variety of weapons, music, and enemies.

[9] On a more negative note, Next Generation reviewed SteamGear Mash, rating it two stars out of five, stating that "It's doubtful, in the end, with its cartoon-style graphics and brightly colored backgrounds, that this particular title will make much of an impact in the US.