Hi guys, i kind of dont want to play the windowed mode. can anyone give me advice how to put Jazz Jackrabbit 2 in fullscreen?
thanks in advance!

julia

I don't have the game, but looking at the GOG store page, it is old. If there are no options in game, you should probably check out dgVoodoo2, just google it. Once you have downloaded it, extract the .exe, along with the files in the MS folder (but not the folder itself), to the main game directory then run the dgVoodooSetup.exe. In the General tab, set Appearance to Fullscreen, and Scaling to Stretched, and in the DirectX tab, make sure application controlled state is unticked, and resolution is set to unforced. Lastly, untick dgVoodoo watermark. Apply, OK, now... launch the game. Does it work?

Sorry I don't have the game either to check it, but are you on Windows 10?

It might be even intentional that the game runs in windowed mode as Windows 10 seems to have some performance issues with some old games running in fullscreen (it merely emulates fullscreen DirectDraw or something like that...). Or even some newer games, like Geometry Dash (on Steam). So if you switch the game to real fullscreen in Windows 10, it might be the game will not run as smoothly (just guessing here).

I guess Windows 10 wants games to run in windowed mode, even if it means "borderless fullscreen window". That's what worked for one person who complained about Geometry Dash running jerkily in Windows 10 (while it was butter-smooth on Windows 7). Changing the graphics from fullscreen to "borderless fullscreen windowed mode" in the Geometry Dash options made it run smooth also on Windows 10.

Short solution - alt+enter

If you see (after switching to full screen) some weird graphical artefacts, then turn off game and launch it again.

If screen (in fullscreen mode) is cutted in (about) 2/3, then use, as mentioned TheNerdyPlane, dgVooDoo. I had such issue on my GPD Win and dgvoodoo helped.

thank you so much for your quick answers!! :)
the good ol' alt+enter shortcut worked.
bardzo ci dziekuje @MartiusR :)

@TheNerdyPlane this game had its release 1998, so yes, its pretty old !