Best Buds vs Bad Guys busts out a new trailer

Bask in the SID chip tune music and the blaze of pixel bullets as Best Buds vs Bad Guys nears release on the Vita. Given that Super Icon's PSM hit Life of Pixel paid homage to the early generations of computer, this one seems to borrow from some classic arcade games, with definite hints of Ghosts and Goblins, Wonderboy, Turrican and quite a few others.

What can you spot?