Shiyu Defense/Critical Node/2026-04-17

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The 2026-04-17 Critical Node is a Critical Node in Shiyu Defense, added in Version 2.7.

1st - 4th Frontiers

Frontier Info

• Agent Electric DMG increases by 20%.
• Agent Basic Attack, Special Attack, and EX Special Attack deal 40% increased DMG and ignore 15% of enemy DEF.

Objectives

• - More than 300s remaining
• - More than 180s remaining
• - Defeat all enemies

First Frontier

Stage Details
Enemy Levels: 50
Recommended Attributes
First Half	Second Half
Enemies
First Half
Wave 1	Wave 2
Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard	Tarasque Mixer Tarasque Mixer
Wave 3	Wave 4
Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer	Tarasque Mixer Tarasque Mixer Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer
Second Half
Wave 1	Wave 2
Fossor Fossor Fossor Fossor Fossor Fossor	Farbauti Farbauti
Wave 3	Wave 4
Fossor Fossor Fossor Fossor Sordidus Sordidus Sordidus Sordidus	Banyrek Banyrek

Second Frontier

Stage Details
Enemy Levels: 55
Recommended Attributes
First Half	Second Half
Enemies
First Half
Wave 1	Wave 2
Patrol Jaeger Patrol Jaeger Patrol Jaeger Patrol Jaeger Scout Jaeger Scout Jaeger Scout Jaeger Scout Jaeger	Illegal Support Unit - Enraged Sweeper Enraged Sweeper
Wave 3	Wave 4
Harrier Jaeger Harrier Jaeger Harrier Jaeger Harrier Jaeger Scout Jaeger Scout Jaeger Scout Jaeger Scout Jaeger	Autonomous Support Unit - Guardian MK II Guardian MK II Patrol Jaeger Patrol Jaeger Patrol Jaeger Patrol Jaeger
Second Half
Wave 1	Wave 2
Ionized - Cyrtoidea Ionized - Cyrtoidea Ionized - Cyrtoidea Ionized - Cyrtoidea Ionized - Nassellaria Ionized - Nassellaria Ionized - Nassellaria Ionized - Nassellaria	Dullahan Dullahan
Wave 3	Wave 4
Miasmic - Frenzied Maniac Miasmic - Frenzied Maniac	—

Third Frontier

Stage Details
Enemy Levels: 60
Recommended Attributes
First Half	Second Half
Enemies
First Half
Wave 1	Wave 2
Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Shieldguard Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer Miasmic Trooper - Cannoneer	Autonomous Support Unit - Lightfoot Rover MK II Lightfoot Rover MK II
Wave 3	Wave 4
Autonomous Support Unit - Heavy Striker MK II Heavy Striker MK II Assault Gunner Assault Gunner	—
Second Half
Wave 1	Wave 2
Fossor Fossor Fossor Fossor Sordidus Sordidus Sordidus Sordidus Sordidus Sordidus	Miasmic - Trinox Miasmic - Trinox
Wave 3	Wave 4
—	—

Fourth Frontier

Stage Details
Enemy Levels: 65
Recommended Attributes
First Half	Second Half
Enemies
First Half
Wave 1	Wave 2
Autonomous Support Unit - Lightfoot Rover MK II Lightfoot Rover MK II Beholder Engine Beholder Engine Beholder Engine Beholder Engine	Terror Raptor Terror Raptor
Wave 3	Wave 4
—	—
Second Half
Wave 1	Wave 2
Hati Hati Hati Hati	Notorious - Armored Hati Notorious - Armored Hati
Wave 3	Wave 4
—	—

Fifth Frontier

Objectives

• - get an S-rating in all rooms and achieve a total score of 100,000
• - More than 300s remaining
• - More than 180s remaining
• - Defeat all enemies

Room 1

Room 1
Details: Agent Ether DMG increases by 20%. While in Ether Veil, Agent ATK increases by 30%, and attacks ignore 10% of enemy Ether RES. In this stage, dealing DMG to enemies earns you DMG Score. Defeating a single normal/elite enemy will grant you an instance of Elimination Score. In this stage, scores earned at different times will receive additional multiplier bonuses. The earlier in the challenge, the higher the multiplier. The total score cap (including bonus) is 50,000.
Challenge Target: - Reach 25,000 points for the current room - Reach 16,000 points for the current room - Reach 8,000 points for the current room
Enemy Details
Enemy Level: 70 Enemy Weakness: Enemy Resistance:
Wave 1	Wave 2
Ionized - Farbauti Ionized - Farbauti Ionized - Dullahan Ionized - Dullahan	Miasmic - Thracian Miasmic - Thracian
Wave 3	Wave 4
—	—

Room 2

Room 2
Details: Agent Electric DMG increases by 20%. Agent Basic Attack, Special Attack, and EX Special Attack deal 40% increased DMG and ignore 15% of enemy DEF. In this stage, dealing DMG to enemies earns you DMG Score. Defeating a single normal/elite enemy will grant you an instance of Elimination Score. In this stage, scores earned at different times will receive additional multiplier bonuses. The earlier in the challenge, the higher the multiplier. The total score cap (including bonus) is 50,000.
Challenge Target: - Reach 25,000 points for the current room - Reach 16,000 points for the current room - Reach 8,000 points for the current room
Enemy Details
Enemy Level: 70 Enemy Weakness: Enemy Resistance:
Wave 1	Wave 2
Autonomous Support Unit - Heavy Striker MK II Heavy Striker MK II Autonomous Support Unit - Lightfoot Rover MK II Lightfoot Rover MK II	Sacrifice - Heretic Jester Sacrifice - Heretic Jester
Wave 3	Wave 4
—	—

Room 3

Room 3
Details: Agent Max HP increases by 15%, Ether DMG and Ice DMG increase by 20%. When an Agent activates an EX Special Attack, their Sheer DMG increases by 15% for 15s. Repeated triggers reset the duration. In this stage, dealing DMG to enemies earns you DMG Score. Defeating a single normal/elite enemy will grant you an instance of Elimination Score. In this stage, scores earned at different times will receive additional multiplier bonuses. The earlier in the challenge, the higher the multiplier. The total score cap (including bonus) is 50,000.
Challenge Target: - Reach 25,000 points for the current room - Reach 16,000 points for the current room - Reach 8,000 points for the current room
Enemy Details
Enemy Level: 70 Enemy Weakness: Enemy Resistance:
Wave 1	Wave 2
Huskron Huskron Huskron Huskron Huskron Huskron Dullahan Dullahan Alpeca Alpeca Alpeca Alpeca	Haytor Haytor
Wave 3	Wave 4
—	—

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