iMac stuck on loading, wireless keyboard disconnected

My iMac gets stuck on the loading screen with bar when I try to boot it.

I know that there are a handfull of keyboard shortcuts to try out (safe mode, single-user mode, etc.) in order to normally fix this issue.

This is where my problem kicks in.

I only own a wireless Apple Keyboard which got disconnected before the loadimg issue occurred, meaning I can not perform the keyboard shortcuts. Neither can I connect the keyboard because I can’t get past the loading screen.

Any thoughts on how to solve this?

Message was edited by: Pathue