What a mouthful
A gem based puzzle game, soft of similar to columns, but instead of matching 3 of the same colours, you have gems and crash gems which are used to destroy a gem of the same colour, and sends a counter gem to the rival player. The game does feature various Capcom characters but they are not directly controllable, merely appearing as avatars. The game is over when the players gems reach the top, similar to Tetris.
Arcade
Arcade version uses an arbitrary resolution. One nice feature is when the blocks are beginning to stack up, the music starts to speed up. As the arcade was the original released, the console and PC versions are based on this version.
PlayStation
Supports both memory cards, Seems to have some overscan (Could be due to the emulator), this can be adjusted in the game settings
Sega Saturn
Saturn version seems to run in a higher resolution compared to the PSone version (Could also be emulator related), also in the Saturn version, Dan randomly interrupts a match in arcade mode, which I have never encountered in the PSone version. The loading times are faster compared to the PSone and Windows version.
Microsoft Windows
The game was ported to the PC. The specs required are higher than I thought, which might be an indicator of a poor port. When running on a PCem based Pentium MMX 100Mhz, there was notable slowdown at 640×480 (not the lowest resolution supported) The graphics card was an ATI Mach64 VT2. Running at 800×600 was near unplayable. A Pentium 2 with a S3 Trio64 gave better resolution.
A nice side effect is the music of the game can be played in any media player, since they are wav files, even the sound effects, They are located in the BGM folder. There is also an EMI folder that contains a bunch of files with the EMI extension, which I’m guessing relates to the background and sprite graphics. There is also a goodies folder which contains images that are also in the goodies section of the game, plus a zip file with a Windows theme. The PlayStation also appears to use the EMI format, but the Saturn does not.
There’s an exe file in the movie folder on the PlayStation version, but trying to run it on windows 98 results in an invalid Win32 application error, trying tor un it from does gives a ‘Program too big to fit in memory’ error
Desktop Theme

A desktop theme comes bundled in the GOODIES folder which can be installed
Comparison
Saturn version (middle) is run on the RetroArch Yabause core with default settings, PlayStation (left) is using the BeetlePSX HW core which also with default settings, the arcade version is on the right.
The graphics are mostly the same across the different versions, with the PC version having the ability to run at a higher resolution.
PlayStation Saturn Arcade Windows
PlayStation Saturn Arcade Windows
Score Ranking
PlayStation Saturn Windows
Main Menu
PlayStation Saturn Windows
Demo
PlayStation Saturn Arcade Windows
Gameplay
PlayStation Saturn Arcade Windows