'Phantom Of The Mall: Erics Revenge'

On the first disc, go to the extras menu and scroll down to until you get to the' alternate and deleted Scenes' option. Press 'right' and enter for a third, slightly different edit of the film called the 'Subterranean cut'. This version of the movie has a run time of 91:17

'Don't Go In The House' (3 disc 'Video Nasty' edition)

On the third disc, go into the 'Extras' menu. Press 'Up' and you will get a couple of full-aperture versions of the film’s original trailer (2:24)

'Kolobos'

Special features menu - Highlight '15th Anniversary Trailer' - Press 'right' for introduction to the 15th Anniversary Screening (3.11)

'Bay of Blood' - 2 disc DVD release

DISC ONE - extras menu - highlight "Bava and the Grindhouse: Joe Dante remembers Twitch of the Death Nerve" – press 'right' and enter for the German opening (1:58) and the UK 'Blood Bath' pre-certification opening (2:37).

'The Last Starfighter' - Blu-ray

1: In the Special Features menu, highlight "Greetings Starfighter! Inside the Arcade Game" and press right for some video game footage (0.48)

2: In the Special Features menu, highlight "Audio commentary with Lance Guest and Jackson Guest" and press right for some footage of Lance Guest at the Arcade Console (0:55)

Apparently these can also be found on the 4K release, using the same method

'Inferno'

On the main menu screen, push 'UP' to highlight the 'X' - Enter for a 15 minute English language featurette where Argento talks about Bava