A note regarding Super R-type on the SNES Classic for any people who prefer Canoe like I do: Vitor Vilela's SA-1 hack for the game works on Canoe without loading glitchy graphics on save states, unlike the Contra III and Gradius III ones! (Set the preset ID to 109C) There is a caveat, though - when starting a new game after having created a battery save on it, sometimes your ship will appear on the title screen and the game will softlock to a black screen if you press start. The only thing I've found that works is to fly your ship around the title screen and try to crash into something. Usually doing this and pressing start will allow you to begin a new game.
He has also made fastrom hacks for Super Castlevania IV and Axelay that work perfectly on Canoe. Another hacker, MaxwelOlinda, has also made fastrom hacks for Aladdin, Magical Quest 3, Contra III, Final Fight Guy, and Power Rangers: The Movie. All work with Canoe and with every patch I've added to them.
In addition, the SNES port of Mega Man 4 works in Canoe without issues.