# Visible walls: wall kinds 00 and 14 of wall_kinds (090A72), which no stage's wall_spawns list
# uses (every wall the stages spawn is of kind 12C-1F4: no sprite parts, collision only).
# Stage 3 through Stage Select Mode; at frame 3700 a crafted wall list is poked into free RAM
# (20B000) and wall_spawn_cursor (20F0B2) pointed at it. Records (14 bytes, as in wall_spawns):
# position, removal position, x, y, z, kind, part count, flags:
#  1. kind 00 (two sprites per step and shadows), 20 steps, removed at scroll 0300, flags 0
#  2. kind 14 (one sprite per step, no shadow), 8 steps, removed once off screen, flags 1
#  3. kind 00 with FF steps: more parts than the free second pool, deleted at once (090DBD)
#  4. kind 00, 10 steps further left, removed at scroll 0300, flags 1
# Reaches spawn_walls 090DB3-090DC8, build_wall_parts 091194-091213, wall_update 090E73-090F46.
# Player 1 walks a little from 3900 to 5600 (trackball).
# 204FDE is player 1's vitality, refilled every 120 frames.
1800  press coin1
+120  press start1
3300  poke 20F061 08
+100  poke 20F06E 03
+0  poke 20F06F 00
+100  press start1
3700  poke 20B000 00
3700  poke 20B001 01
3700  poke 20B002 00
3700  poke 20B003 03
3700  poke 20B004 69
3700  poke 20B005 12
3700  poke 20B006 2E
3700  poke 20B007 08
3700  poke 20B008 38
3700  poke 20B009 04
3700  poke 20B00A 00
3700  poke 20B00B 00
3700  poke 20B00C 20
3700  poke 20B00D 00
3700  poke 20B00E 00
3700  poke 20B00F 01
3700  poke 20B010 00
3700  poke 20B011 00
3700  poke 20B012 69
3700  poke 20B013 12
3700  poke 20B014 D1
3700  poke 20B015 08
3700  poke 20B016 38
3700  poke 20B017 04
3700  poke 20B018 14
3700  poke 20B019 00
3700  poke 20B01A 08
3700  poke 20B01B 01
3700  poke 20B01C 00
3700  poke 20B01D 01
3700  poke 20B01E 00
3700  poke 20B01F 00
3700  poke 20B020 69
3700  poke 20B021 12
3700  poke 20B022 CD
3700  poke 20B023 0B
3700  poke 20B024 38
3700  poke 20B025 04
3700  poke 20B026 00
3700  poke 20B027 00
3700  poke 20B028 FF
3700  poke 20B029 00
3700  poke 20B02A 00
3700  poke 20B02B 01
3700  poke 20B02C 00
3700  poke 20B02D 03
3700  poke 20B02E 00
3700  poke 20B02F 11
3700  poke 20B030 00
3700  poke 20B031 09
3700  poke 20B032 38
3700  poke 20B033 04
3700  poke 20B034 00
3700  poke 20B035 00
3700  poke 20B036 10
3700  poke 20B037 01
3700  poke 20B038 FF
3700  poke 20B039 FF
3701  poke 20F0B2 00
3701  poke 20F0B3 B0
3701  poke 20F0B4 20
3701  poke 20F0B5 00
3720  poke 204FDE 18
3840  poke 204FDE 18
3960  poke 204FDE 18
4080  poke 204FDE 18
4200  poke 204FDE 18
4320  poke 204FDE 18
4440  poke 204FDE 18
4560  poke 204FDE 18
4680  poke 204FDE 18
4800  poke 204FDE 18
4920  poke 204FDE 18
5040  poke 204FDE 18
5160  poke 204FDE 18
5280  poke 204FDE 18
5400  poke 204FDE 18
5520  poke 204FDE 18
5640  poke 204FDE 18
5760  poke 204FDE 18
5880  poke 204FDE 18
3900  roll 1 4 4
4400  roll 1 -4 4
5000  roll 1 4 -4
5600  roll 1 0 0
6000  end
