What are buster bros?

Some articles on buster bros:

Super Buster Bros.
... Super Buster Bros ... (Super Pang outside of the USA) is a cooperative two-player "Shooting Puzzle" arcade video game developed by Mitchell and released in 1990 by Capcom ...
Buster Bros. - Compilation
... as a compilation on the PlayStation under the name of Buster Bros Collection (Super Pang Collection in Europe) in 1997 ... Buster Bros and Super Buster Bros were also included in the PSP game Capcom Puzzle World in 2007 ...