Tanglewood (2018)

Tanglewood
Developer: Big Evil Corporation Publisher: Big Evil Corporation Platforms: Unlicensed Genesis, Windows, Linux, Mac OS X Released internationally: August 14, 2018 This game has a hidden developer message. This game has hidden development-related text. This game has debugging material. This game has a hidden level select.

Tanglewood is an indie game developed using an original Mega Drive development kit. As you can imagine, there were many technical issues during development.

Crash Handler

If the game ever crashes, it'll display this crash handler. The text for it can be found at 0x71E in the ROM.

D0: 
D1: 
D2: 
D3: 
D4: 
D5: 
D6: 
D7: 
A0: 
A1: 
A2: 
A3: 
A4: 
A5: 
A6: 
SP: 
SR: 
PC: 
ADDRESS ERROR  :(   
BUS ERROR  :(       
ILLEGAL INSTRUCTION:
DIVIDE BY ZERO  :(  
UNHANDLED INTERRUPT:
UNHANDLED TRAP  :(  
UNHANDLED EXCEPTION:
STACK:
OUT OF VRAM  :(

(Source: Ferrox)

Build Date

Present at 0x2CE in the ROM is a build date.

5/9/2018

(Source: Ferrox)

Developer Messages

Present at 0x1DAAB7 in the ROM are a couple of developer messages.

The Quick Brown Fox Jumps
Over The Lazy Dog
Is this on? I made a Chronal
Accelerator, I'm sure I can do this.

(Source: Ferrox)

Level Select

At the copyright screen, press and hold Left+Start until the main menu appears. The cursor will be red instead of green if done correctly. Now go to the sound test and play SFX numbers 19, 65, 09, 17 (Yuji Naka's birthday and a reference to Sonic 2's level select code). If done correctly, a level select option will be added to the main menu.

(Source: GameFAQs (_0blivion_))