A walkthrough of the 2021 ZX Spectrum game, Bolder Dash. A 16K Boulder Dash clone, written for the Bytemaniacos 16K games competition (http://www.bytemaniacos.com/?page_id=3826). In this variation of the classic game, you can push also rocks upwards - even whole stacks of them.
From the recording originally sent by Paul E. Collins to http://www.rzxarchive.co.uk/. Recorded using "rollback", a feature of the emulator which allows you to mark a point, which you can then roll back to later if you get into difficulty, and try again. More info. on the channel "About" page: https://www.youtube.com/user/rzxarchive/about