Gotta Protectors/Chapter 4

61. Whirlpool Wilds
Difficulty: ★★★★★

Build turrets between the castle and barricades. The current in the water slows enemies from approaching the castle and moves you counterclockwise around the map. Once in the water, you need to use one of the warp doors to get back to the castle.

62. Stealth Approach
Difficulty: ★★★★★

63. Something Fishy
Difficulty: ★★★★★

64. Odawara Castle
Difficulty: ★★★★★★

65. Sleepless City
Difficulty: ★★★★★★★

66. Terminus Bridge
Difficulty: ★★★★★★

67. Line of Defense 2
Difficulty: ★★★★★★

68. Battle with Chaos
Difficulty: ★★★★★★★

69. Never Give Up!
Difficulty: ★★★★★★★

70. Battle for Nippon
Difficulty: ★★★★★★★

71. Save Your Village!
Difficulty: ★★★★★★

72. Deeprift Kingdom
Difficulty: ★★★★★

73. Gunma Clash
Difficulty: ★★★★★★★

74. Everywhere You Go
Difficulty: ★★★★★★

75. Cross Dungeon
Difficulty: ★★★★★★

76. The Long Journey
Difficulty: ★★★★★★

77. Stop Him!
Difficulty: ★★★★★★★

78. Danger! Don't Open
Difficulty: ★★★★★★★

The red gates will protect Princess Lola and the castle from the horde of enemies. The turrets will attack them and some character's attacks can reach across the red gate. The left path next to the castle leads to chests containing gold. The right path has a chest with the red key. After some time, Deathfang Luxorz will appear. Defeat him first before getting the red key. More enemies will spawn when you open the red gates.

This stage has a large variety of enemies making it a good one to farm items.

79. DESTROYERS RETURN
Difficulty: ★★★★★★★

80. Icequeen Lamia
Difficulty: ★★★★★★★

Icequeen Lamia shoots ice projectiles that can slow your movement. She can also spawn succubus generators. Move Princess Lola away from the center of the castle so she doesn't get hit. Focus on Icequeen Lamia and move back to Princess Lola if you need to heal. Once she is defeated, take care of any remaining succubi.