Amiga 1200 Compatility..?

[Juvefan]

Hi, I have just joined amiga.org so hello to everyone.

Wanted to ask Amiduffer if he was 100% sure that holding both mouse buttons down before booting up would allow you to run any game in OCS or ECS on an Amiga 1200?

I ask because I used to own an Amiga 500 years ago and then sold it to a mate. I am now in the process of buying an Amiga 1200 and before buying games wanted to make sure of the compatability.

thanks in advance guys

[Juvefan]

Sorry to sound a bit stupid, but what is WHDLoad and how does it work?

Is it a disk that you need to run before hand?

Where can you buy it?

Thanks