Grub Glide

Loading sources… all files

Overview

Grub Glide is a homebrew Game Boy game by Ethan Hazel, made with the GBDK C library for making Game Boy games.

The author admits he is not an expert in C; this was in fact his first time actually using it, so the code could probably be optimized better than it is. He gives big thanks to gingemonster for his tutorials on GBDK, without whose videos he says he wouldn't have been able to get nearly as far into the project as he did.

The game itself needs only one instruction, printed at the bottom of the screen before each flight: hold A to fly.

Made by: Ethan Hazel

Controls guide

Menus

Button and key	Action
A`X`	Leave the title screen, then take off from the start screen

Flying

Button and key	Action
A`X`	Hold to fly upward; let go to sink

Cheatsheet

Rules

Ring: Fly through it for 1 point
Score: Top right, up to 999; best score top left
Speed: Rings come faster after 50, 100 and 150 points
Crash: Letting a ring slip past, or flying off the top or bottom of the screen
New best: A jingle and a message play after the crash

Tips

Only one ring is on screen at a time and the next one appears at a random height the moment you pass through, so start climbing or sinking toward it straight away.
Rising and sinking top out at the same speed and the grub turns around within a few frames, so short taps of A give much finer control than long holds.
The ring is tall but the window for passing it is short; line up with its middle well before it reaches the grub instead of correcting at the last second.
After 150 points the rings stop speeding up, so the hardest stretch is getting from 100 to 150; past that the pace stays the same up to the 999 cap.
Only A on its own counts as flapping: if another button is held at the same time the grub just falls.