Graphically impressive follow-up.
In this routine, like so many others, you can delete any lines if you don't want the effect they produce. Line 70 stops you getting killed when you get crushed, line 80 makes you immortal (in other words you can't die), line 90 lets you select the start level -1 (0-3), for example 2 would start you on level 3, then line 100 gives good ol' infinite lives, and line 110 gives infinite time. Play your master tape from the start.
This poke remains untested, because I do not have the tzx tape file of the original Virgin release of the game. I provide a download link so you can download it anyway...
Click here to download this hack (TAP format) or Click here to download this hack (TZX format).
10 CLEAR : LET T=0
20 FOR F=23296 TO 23496
30 READ A : POKE F,A
40 LET T=T+(F-23286)*A : NEXT F
50 IF T<>2072209 THEN STOP
60 LET A=23446
70 POKE A,207 : REM CRUNCH
80 POKE A+3,220 : REM IMMORTAL
90 POKE A+5,[LEV] : POKE A+12,210
100 POKE A+15,212 : REM LIVES
110 POKE A+18,237 : REM TIME
120 RANDOMIZE USR 23296
130 DATA 221,33,203,92,17
140 DATA 199,2,62,255,55
150 DATA 205,86,5,48,241
160 DATA 33,50,94,52,35
170 DATA 53,205,6,93,33
180 DATA 33,91,34,31,209
190 DATA 195,238,208,221,33
200 DATA 172,91,33,131,241
210 DATA 6,6,197,221,78
220 DATA 0,221,35,6,0
230 DATA 197,229,17,20,89
240 DATA 237,176,235,54,201
250 DATA 205,20,89,225,193
260 DATA 9,193,16,229,33
270 DATA 178,254,17,255,255
280 DATA 1,243,4,237,184
290 DATA 175,50,111,255,50
300 DATA 254,254,33,187,91
310 DATA 17,116,255,1,16
320 DATA 0,237,176,33,107
330 DATA 91,34,17,255,195
340 DATA 244,254,205,110,254
350 DATA 33,110,254,17,111
360 DATA 254,1,115,0,112
370 DATA 237,176,235,54,195
380 DATA 35,54,132,35,54
390 DATA 91,201,62,64,50
400 DATA 128,64,33,146,91
410 DATA 34,163,64,195,110
420 DATA 64,62,201,50,58
430 DATA 0,50,62,0,62
440 DATA 0,50,165,247,175
450 DATA 50,18,0,50,118
460 DATA 0,50,5,0,195
470 DATA 64,202,17,24,14
480 DATA 14,25,21,1,96
490 DATA 54,82,50,17,14
500 DATA 12,24,97,255,51
510 DATA 16,110,64,119,0
520 DATA 16,39,255,31,0
530 DATA 16