I honestly did not know some games were suffering from slowdowns, all the games i have played so far were perfect.
Unfortunely, there's not much that can be done with but i'll still take a look at it to see if it can't be improved.
What is missing from the emulator is : A menu
It can be done but Mednafen is a huge mess.
One of my long term plans is to turn the libretro port of Mednafen PCE into a standalone app,
something that should make it easier to plug a menu to it and (hopefully) make it faster.
to save / load states
Can't really do that without a menu.
Mednafen does have an auto-save/auto-loading option that can be enabled in the config file.
I'll turn it on by default for the next version.
an option to reset the game
What for ?
All the PC-Engine games can be resetted with the RUN+SELECT combo but that has been disabled by default...
It can be re-enabled though.
to set autofire on / off (the pce has a lot of shooters)
Mednafen is setting autofire to different buttons, there is no "switch on/off" autofire button.
Unfortunely, there's not enough buttons on the zero to map the autofire buttons...
This is something i should look into when working on the libretro port.
it will be great if the analog pad was supported.
It isn't configured by default.
However, using Start+A, you can reconfigure the controls and use the analog stick.
Unless you want it to be mapped by default ?
If so, then to what ? The Dpad ?
Thank you for testing Mednafen.