/usr/share/games/BlocksOfTheUndead/assets/lvls/1/5.txt is in blocks-of-the-undead-data 1.0-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 | 2
//////
//////
//////
//////
//////
//////
/////4
/////5
/////5
/////0
////05
//0445
|