What a challenging game, definitely reminiscent of old school platformers. It took a bit to get the hang of dashing over enemies, but once I got the hang of it it felt great to jump over a shield enemy to get the bastard out!
Really liked that you pause when you shoot, especially when you did so in (which was basically all of the time). The only grip I have is sometimes the player would snap to a wall when I was trying to go up or down, which would often lead me head first to a ball of acid.
Mater's cameo gave me a laugh.