Real Virtua Tennis players use guns. To shoot things. The ball, for instance. Josh Smith over at blog Josh Smith Online (clever!) spotted this arcade cabinet. The outside says Virtua Tennis, but the inside is for shoot 'em up Point Blank 2. Josh Smith from Josh Smith Online adds:

I can understand repurposing an arcade cabinet, MAME anyone, but if you are removing buttons and adding guns the least you could do is pop a generic top sign into the cabinet.

Virtua Tennis With Guns [Josh Smith Online Thanks, Josh Smith!]