V2 mode games will not run in V1 mode and return an error (or just beep at you).
V1 games will usually run in V2 mode, but with subtle glitches. A common symptom of a V1 game running incorrectly in V2 mode is a washed-out bluish-green screen.

If you see screens like this, you need to switch to V1 mode.

The choice between 4Mhz and 8MHz is mostly just a matter of convenience, but keep in mind that some older games run too fast at 8MHz.

Almost all floppy disk games are self-booting.
If a game requires disk BASIC, you need to boot from an N88 BASIC system disk first, swap disks, and then run the desired program. The usual BASIC commands apply:
FILES
LOAD"Filename"
RUN"Filename"

For most casette games, simply type:
LOAD"CAS:
RUN

More complicated load instructions are indicated at the end of the file names in this set. For example, to run the file "Fire House (Honoo no Yakata) {V1 mode, MON R Ctrl-B LOAD CAS}.t88", do the following:
(Boot up in V1 mode)
MON  
R  
LOAD"CAS:"  
RUN  




=== Controls ===
For games, movement is almost always numpad 4,6,2,8 or the cursor keys. The buttons are usually some combination of Enter, Spacebar, Shift, Esc, Tab, and ZXCV.