Snes9x.com

Select 'Config - Automatic Fire...' menu and try to press 'defaults' button.

~/Library/Application Support/Snes9x by default.
Pick up the .oops file in the "Freezes" folder, rename it to .frz and load it manually from "Option - Defrost State from..." menu.

I'm not sure what happens, but you may try to use Configure Controllers dialog; it may recognize your on-board keyboard.

Try to turn off Core Image Filter.

Read Help menu - Snes9x Help - Cheat Support.

See Help menu - Snes9x Help - Getting started.

If you use USB Overdrive etc, try to turn it off.

うーむ，ランチャ側の問題にも聞こえるのですが…。いかがでしょう。

Are you using 1.53(113), not 112 ?

I can click the "Cheat 001" text and edit it. I'm not sure why you can't...

This option eliminates copying the texture from the main memory to GL memory, and should enhance the performance.
I'm still not sure why it fails on 10.8.

Click the description column in the Cheat Entry dialog.

Please see if this helps:
Choose 'Preferences...' menu with holding 'option' key, and the hidden OpenGL setting dialog appears.
Turn off 'Client Storage.'

The message appears, but defrosting seems to work fine for me, running OS X 10.8... are you using 1.53(113)?

First of all, please use the newest version 1.53. You're using an older version.

Could you track the problem and report it to Apple soon?
I'm not a seed developer and can't get Mountain Lion until its release day. I hope for Apple to fix any problems before its release.

'Freeze' and 'defrost' in fact derive from the old snes9x readme.txt. Not a mac only thing, but it spreads only in mac culture. In snes9x source codes, it's mainly called as 'snapshot'. Anyway we call it 'savestate' here. I'm not sure why Freeze/Defrost screen doesn't work for you. To manually read ...

Set frame skip to 'auto' and try to modify sound settings in Preferences dialog.

Snes9x for Mac doesn't support command-line options.
To open a ROM from the Terminal, use 'open' command instead.

Click the game window.