The easter egg in action53™ volume 3: Revenge of the Twins

Hidden in Action 53 Volume 3: Revenge of the Twins is a 32768 byte .ar file containing some hastily made trinkets, inspired by how various older games sometimes contains unusual data in unused space. This TCRF bait failed to catch, but shortly later the Action 53 lead programer got some “cheeky messages” found in another game. 

MIME-type           Name                               Size
[..]                Parent Directory
text/plain          easter-egg.txt                      156
text/plain          ascii-art.txt                      1863
text/html           README.html                        1546
text/plain          robots.txt                           23
image/svg           a53-logo.svg                       1042
image/svg           INL-logo.svg                       3458
text/x-asm          pkb.s                              1464
text/x-asm          coredump.s                        10844
text/x-c            prg.c                               226
text/x-shellscript  run.sh                               83
image/x-icon        favicon.ico                          70
image/png           walpaper.png                       8379
image/png           background.png                      201
                    font.chr                           2048
image/png           palette.png                         354