Progear

Progear is an arcade video game developed by CAVE and published by Capcom on the CPS-2 arcade system board in 2001. This was Cave's only horizontal scrolling shooter until DeathSmiles in 2007. The game features a steampunk-like style and art design. This game is the second of two CAVE shoot 'em ups to be released in America with the third CAVE NTSC-U/C release being Princess Debut, and in limited print; and as a result, the US version is somewhat rare. Source: Wikipedia, "Progear", available under the CC-BY-SA License.