SRB2 just updated to 2.2.10, it does not have a patch file for 2.2.9 and a lot of things has changed. You should probobly update everything from there.

Also the models.dat is for the default 3d models that are included with the game that is optional (and can only be used in Open GL). So It is not needed.

The game has been updated

PERFECT! Thank you, It is running smoooooth.

@mitu
haha let me check again :)
2.1 ...

Can also confirm it works on pi 4, thanks mitu

Just like to let you know i have srb2 2.2.8 and srb2k 1.3 install all working online thanks to the two that posted two different install methods. From both of them. I lernt alot and now on github have both srb2 and srb2k sauce files upload. Ive all so reedited the .sh so it makes it really easy for me to update both games.