Darius Twin is too hard.
No it won't, because I won't play it. Too hard of a shooter for me. I prefer classic type shooters (slow gameplay, few things on screen at once), rather than those with thousands of bullets on screen at once. They make me cry indeed.
Ikaruga will make you cry.
Adding PCE console specific layer on top of that, makes for an interesting challenge (no, not a reference to Ys II).
Forgotten Worlds for Genesis, you get infinite continues on two player mode.
Doesn't have to be easy as long as it is multiplayer.