The E3 2015 trailer seems to heavily imply that the game will focus on 2 player co-op as Cuphead and Mugman do the devil’s bidding. You will be able to use a wide selection of weapons, and each weapon has different types of shots allowing you to mix and match for your style, or what is most appropriate for that level.
Cuphead is a Run ‘N’ Gun fighting game drawn in the style of classic 1930’s cartoons. A debut trailer was released with the announcement during E3 2014, and an expanded trailer was revealed during E3 2015.
The game is made up of side scrolling levels, but the bosses really take the cake. Each one is unique and will have the player testing their skills as you need to pay close attention to patterns and have quick reflexes.