Universal Tower Defense is a Roblox gacha tower defense game that mixes anime-style characters with strategy-based gameplay. Pulling strong units is important, but knowing what each unit actually does matters even more. Some units shine early, others scale hard into late game, and a few are built purely for support.
This guide covers all current units in Universal Tower Defense, their roles, abilities, and how they fit into your team. Also check out our Universal Tower Defense Codes & Tier List for more rewards!
Unit Rarity System Explained
Units in Universal Tower Defense are divided by rarity. Rarity affects how often a unit appears in the summon banner and usually reflects its overall power and utility.
- Rare: Common pulls, beginner-friendly
- Epic: Mid-tier units with useful passives
- Legendary: Strong units with unique mechanics
- Mythical: Game-changing units with high impact
- Secret: Extremely rare, top-tier utility or damage
Understanding rarity helps you decide when to save gems and when to summon.
How to Get Units in Universal Tower Defense
To summon units, you need gems.
- Click the Areas button
- Teleport to the Summon area
- Choose between: Single summon (50 gems), Ten summons (500 gems)
Banners rotate regularly, so saving gems for strong banners is important. Avoid spending gems on every banner unless you are early in the game.
Rare Units (11% Drop Rate)
Rare units are the most common characters you will get. While they lack complex mechanics, many of them are very useful in early progression.
Naruto (Nutaru) – Water, Ground
- Has a base 17% critical chance
- At Ethereal 6, gains bonus attack and range when near Sasuke
Nami (Namo) – Water, Ground
- Marks enemies with a bounty
- Killing marked enemies gives triple yen
Goku (Roku) – Fire, Ground
- Gains 5% damage on every attack
- Damage stacks reset every wave
Gaara (Gaaru) – Water, Ground
- Completely immune to stun effects
Luffy (Laffy) – Wind, Ground
- Gains extra range for each unique Pirate Crew unit on your team
Renji (Ranji) – Wind, Ground
- Gains 1% attack per hit, up to 10%
Orihime (Orahemi) – Rose, Hill
- At full upgrade, shields one nearby unit from stuns
Epic Units (3.2% Drop Rate)
Epic units are harder to obtain and usually bring team buffs or scaling damage.
Neji (Nejo) – Wind, Ground
- Gives nearby allies bonus critical chance
Kakashi (Masked Ninja) – Fire, Ground
- Boosts damage and range for Team 7 units
Sanji (Fire Foot Cook) – Fire, Ground
- Deals extra damage to burned enemies
Zoro (Triple Threat) – Rose, Ground
- Gains damage per enemy hit
- Loses some buff power at the start of each wave
Speedwagon (Fastcards) – Rose, Ground
- Reduces upgrade costs for units placed while he is active
Legendary Units (0.3% Drop Rate)
Legendary units introduce advanced mechanics like traps, scaling stats, and status synergy.
Zora (Zorus) – Dark, Ground
- Places up to three traps
- Includes stun traps and radiation traps
Gin Ichimaru (Gen) – Fire, Ground
- Gains attack based on his range stat
Rukia Kuchiki (Ruka) – Ice, Ground
- Deals bonus damage to frozen enemies
Shikamaru (Shakumira) – Light, Ground
- Gains range when slowing enemies
- Unlocks active ability at Ethereal 6
Akainu (Admiral Magma) – Fire, Ground
- Creates lava puddles that confuse enemies
Rock Lee (Pebble) – Rose, Hybrid
- Gains attack when knocking enemies back
Blackbeard (Greybeard) – Dark, Ground
- Deals massive bonus damage to armored enemies
Mythical Units (0.03%–0.25% Drop Rate)
Mythical units define the meta. These units can carry entire teams when built correctly.
Sakuya
- Stops time completely
- Stuns enemies and buffs her own damage
Ace (Spade) – Fire, Hill
- Applies heavy burn damage
- Ignores armor damage reduction
Law (Rule) – Water, Ground
- Increases damage and reduces cooldown
Shanks (Shunks) – Rose, Ground
- Buffs nearby units when bosses spawn
- Immune to stuns
Hatsune Miku (Virtual Idol) – Light, Hybrid
- Provides selectable damage or range buffs
- Buff strength increases with upgrades
Sasuke
- High damage with large area stuns
Mob Psycho
- Slows enemies consistently
Kirigaya Kazuto – Ice, Ground
- Extremely high critical-based damage
- Gains follow-up attacks after landing critical hits
Genos (Cyborg Disciple) – Fire, Hill
- Applies burn and gains bonus damage against burning targets
Berserker
- Ability details still unknown
Secret Units (0.00625% Drop Rate)
Secret units are the rarest characters in the game and are extremely hard to obtain.
Sung Jin-Woo
- Summons shadow soldiers to fight enemies
Lelouch (Lulu) – Hybrid
- Stuns enemies
- Forces enemies to walk backward while in range
Team Building Tips for Beginners
- Start with Rare units and replace them gradually
- Always include at least one support or utility unit
- Damage dealers alone are not enough
- Units that boost money or buffs help long-term progress
Balanced teams clear stages more consistently than full DPS setups.
Universal Tower Defense offers a wide variety of units, each designed for specific roles. While Mythical and Secret units dominate the late game, smart use of Rare, Epic, and Legendary units can still take you far. Understanding abilities, synergy, and team balance will always matter more than rarity alone. As new units are added, this system will continue to evolve, so planning ahead is the key to staying strong.