Trip World

This page contains notes for the game Trip World.

No Regional Differences Between Japanese and European version#

The Japanese and the European Game Boy release are identical except for two bytes at ROM addresses 014A and 014D.

Japan	0140: 00 00 00 00 00 00 00 01 03 00 00 BB 00 41 17 17
Europe	0140: 00 00 00 00 00 00 00 01 03 00 01 BB 00 40 17 17

The game runs some checks at the beginning to see if any bytes have been changed. For example, the result when adding values in addresses 0134 to 014D + 0x19 must be 0x00 or the game will hang up on the Nintendo logo. Since it's not like any hardware does something according to these bytes (Game Boy games are region-free), this change seems pretty inconsequential.

Sound List#

You can initiate music and sound by editing the following addresses:

E479 to xx where xx is a value from the table below.
E478 to 01 which means no fading.
E477 to 02 which tells the game to play the sound.

	World 1, world 4, world 5, world 5 bosses	Title screen, intro cinematics, level select screen, game over screen, ending cinematics, world 2, world 3, world 1~4 boss
00	World 1 BGM	World 2 BGM 1
01	World 4 BGM	World 2 BGM 2
02	World 5 BGM 1	World 3 BGM 2
03	World 5 BGM 2	World 3 BGM 1
04	World 5 Bosses	Boss
05	Level finished	Level finished
06	Game Over	Game Over
07	Final Boss	Ending cinematics BGM
08	SFX	Staff Credits
09
0A
0B
0C
0D
0E
0F
10
11
12	Jump	Jump
13
14
15
16	Kick	Kick
17
18	Owl falls (world 2)
19
1A
1B
1C
1D
1E
1F
20
21
22	Transform	Transform
23
24
25
26
27
28
29
2A
2B
2C
2D
2E	crash
2F	crash
30	crash
31	crash
32	crash
33	crash
34	crash
35	crash
36	crash	World 4 boss attack SFX

Enemy List#

https://i.imgur.com/8mHIEw6.png

Possibly unused:

26 - seems to be a test fish that uses same sprites as 27. It's mostly idle.
34 - needs looking into but very likely floor tile removal.
5A - no idea...