The Ant Lion, Roach, and Doodle Bug are enemies randomly battled in Golden Sun and Golden Sun: The Lost Age. These monsters, resembling huge cockroach-like bugs, are palette swaps of each other that have differing levels of power and defense and are fought in different locations in the games.

In Golden Sun and Golden Sun: The Lost Age

Ant Lion

An Ant Lion (アリジゴク Antlion) is a giant-sized level 16 variant with a tan carapace and red legs and pincers. In Golden Sun, it is battled throughout Lamakan Desert, but not as a traditional randomly battled monster; at several points throughout the desert, casting the Reveal Psynergy and approaching a now-visible Ant Lion's nest will trigger a scripted battle with a single Ant Lion. After defeating it, casting Reveal again at the same spot will ensue the same battle again, and this process is infinitely repeatable.

Being the "scripted single big monster" of Lamakan Desert that is repeatable but not a Boss encounter like the Manticore at the end of the desert, the Ant Lion is of course much stronger and more durable than any single normal monster randomly battled throughout the desert, but since it always appears one at a time by itself, it is manageable with a party of 4 Adepts. At that point in the game, however, it is an excellent enemy to level-grind with, felling it with a Mercury Djinni each time, because of large EXP and Coin rewards, and the extremely common chance to win a powerful Vial.

An Ant Lion is especially likely to be affected by Defense-lowering effects. Its statistics are as follows:

Name	HP	PP	Attack	Defense	Agility	Luck
Ant Lion	400	32	160	45	58	19
Elemental Resistances and Levels			Exp	Coins	Item Dropped	Drop Rate
175 (Lv 4)   100 (Lv 2)   100 (Lv 2)   25 (Lv 0)			168	320	Vial	1/8

An Ant Lion uses the following battle commands with moderate intelligence:

Command	Chance to use	Elem. Stats used with *	Description
Attack	2/8 (25%)	--	Standard physical attack.
Sonic Wave	2/8 (25%)	95 Power Level 2	Enemy ability where the user launches rings of light-blue energy through a targeted Adept. Deals a Jupiter-aligned attack with 45 base damage, and it has a chance to Paralyze the target for 1 turn.
Earthquake	2/8 (25%)	95 Power	Psynergy costing 7 PP that launches multiple party members into the air twice each. Deals a Venus-aligned attack with 35 base damage that is spread out across 5 enemies with high damage distribution.
Flare Wall	2/8 (25%)	115 Power	Psynergy costing 7 PP that generates a 2-stacked mass of fire that goes through multiple party members. Deals a Mars-aligned attack with 40 base damage that is spread out across 3 enemies with high damage distribution.

Roach

A Roach (ラルヴァ Larva) is a normal-sized level 22 variant with a light blue carapace and dark purple legs and pincers. In Golden Sun, it is randomly battled throughout Suhalla Desert.

Roaches are, in general, not quite as strong or durable as the other random monsters in where it is fought, such as the Brutal Troll.

A Roach is especially likely to be affected by Defense-lowering effects. Its statistics are as follows:

Name	HP	PP	Attack	Defense	Agility	Luck
Roach	211	27	252	72	92	4
Elemental Resistances and Levels			Exp	Coins	Item Dropped	Drop Rate
175 (Lv 4)   100 (Lv 2)   100 (Lv 2)   25 (Lv 0)			144	120	Bramble Seed	1/32

A Roach uses the following battle commands with moderate intelligence:

Command	Chance to use	Elem. Stats used with *	Description
Attack	2/8 (25%)	--	Standard physical attack.
Sonic Wave	2/8 (25%)	95 Power Level 2	Enemy ability where the user launches rings of light-blue energy through a targeted Adept. Deals a Jupiter-aligned attack with 45 base damage, and it has a chance to Paralyze the target for 1 turn.
Quake Sphere	2/8 (25%)	95 Power	Psynergy costing 15 PP that launches the party into the air three times. Deals a Venus-aligned attack with 65 base damage that is spread out across 7 enemies with high damage distribution.
Flare Wall	2/8 (25%)	115 Power	Psynergy costing 7 PP that generates a 2-stacked mass of fire that goes through multiple party members. Deals a Mars-aligned attack with 40 base damage that is spread out across 3 enemies with high damage distribution.

Doodle Bug

A Doodle Bug (ドードルバグ Doodle Bug) is a normal-sized level 35 variant with a violet carapace and red legs and pincers. In Golden Sun: The Lost Age, it is randomly battled throughout Mars Lighthouse, the game's final dungeon. Although the Doodle Bug does not appear in Golden Sun, it exists in the code of the game with its name and abilities, but none of its statistics coded beyond weak placeholder stats.

Considering how it actually has less HP than the Roach, this "endgame enemy" should be no problem to swat, and is the least durable enemy in Mars Lighthouse.

A Doodle Bug is especially likely to be affected by Defense-lowering effects. Its statistics are as follows:

Name	HP	PP	Attack	Defense	Agility	Luck
Doodle Bug	202	22	329	109	173	12
Elemental Resistances and Levels			Exp	Coins	Item Dropped	Drop Rate
175 (Lv 4)   100 (Lv 2)   100 (Lv 2)   25 (Lv 0)			417	176	Smoke Bomb	1/32

A Doodle Bug uses the following battle commands with moderate intelligence:

Command	Chance to use	Elem. Stats used with *	Description
Attack	4/8 (50%)	--	Standard physical attack.
Sonic Wave	2/8 (25%)	95 Power Level 2	Enemy ability where the user launches rings of light-blue energy through a targeted Adept. Deals a Jupiter-aligned attack with 45 base damage, and it has a chance to Paralyze the target for 1 turn.
Briar	1/8 (12.5%)	95 Power	Psynergy costing 11 PP that generates a mass of thorny spiked vines at the position of the party. Deals a Venus-aligned attack with 70 base damage that is spread out across 3 enemies with high damage distribution.
Wild Growth	1/8 (12.5%)	95 Power	Psynergy costing 19 PP that causes a mass of long spiked vines to sprout out of the ground and damage multiple party members. Deals a Venus-aligned attack with 110 base damage that is spread out across 5 enemies with high damage distribution.