A walkthrough of the 2015 ZX Spectrum game, Pengo Quest. On each level destroy the number of ice blocks indicated at the bottom right, whilst avoiding the nasties, and then the exit will appear. More info. and download here: https://www.worldofspectrum.org/forums/discussion/51809/
From the recording originally sent 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