Sai the Shadow

Sai the Shadow (or simply Sai) is a monkey hero that appears in Bloons Adventure Time TD. She is comparable to the Ninja Monkey, with camo detection and fast throwing. She is unlocked in the adventure Lemon Grabbed in Lemongrab. Her upgrades consist of improving her shuriken attacks, Caltrops, and the Sabotage Supply Lines/Bloon Sabotage ability, as well as a new 'shadow blob' that causes affected bloons to take double damage for a limited time. She costs $800 to place.

Upgrades

 * Longer Range ($250): Perception training gives Sai increased range [+5 range]
 * Seeking Shurikens ($540): Ancient ninja ways cause shurikens to seek bloons
 * Bloonatomy ($500): Extra damage to MOABs [+3 damage to MOAB class bloons]
 * Marked for Death ($800): Bloons hit by the blob of shadows take double damage for a short period of time [Duration: TBA seconds]
 * Fridjutsu ($350): Secrets of Fridjitsu allow Sai to freeze bloons (Req. Dagger of Chilled Glass equipped) [Bloons hit by attacks are afflicted with the Freeze effect]
 * Tetsubishi ($600): Sai throws spiky caltrops onto the track [Throws one caltrop pile every TBA seconds; caltrops can pop TBA bloons per pile and cannot be modified by damage type changes from items]
 * Sabotage Supply Lines ($3,000): Ability: All bloons are forced to move slower (Req. Level 5) [All bloons under BAD onscreen move TBA% slower for TBA seconds]
 * Sharper Shurikens ($300): Sharpened shurikens can hit more bloons [+2 pierce]
 * Super Sharp Shurikens ($350): Razor sharp shurikens can hit even more bloons [Further +3 pierce]
 * Multithrow ($800): Sai can throw extra shurikens each attack [Throws 1 extra shuriken]
 * Flash Bomb ($1,500): Adds an explosive attack that can stun bloons (Req. Level 3, above upgrade and Tetsubishi) [Throws a bomb every TBA shuriken throws that explodes upon impact, damaging any bloon type short of Ghost Bloons and stunning them for TBA seconds]
 * Bloonjitsu ($5,000): Sai throws even more shurikens and attacks faster (Req. Level 7) [Throws 3 more shurikens per attack, attack cooldown reduced by .2s or 125% speed increase]

Star Boost
Sai will receive the following permanent boosts as she levels up:
 * 2 stars - Base range increased by 2
 * 4 stars - Base attack pierce increased by 1
 * 6 stars - Base attack speed increased by 0.1
 * 8 stars - Base attack pierce increased by 2
 * 9 stars - Base range increased by 3
 * 10 stars - Bonus +1 damage to all modified bloons (camo, regrow, etc.)

Quotes
Sai is silent and never speaks throughout the game. She only deeply breathes and exhales when she is tapped/clicked on too many times or makes a shushing sound, but one of the other characters randomly will say something when placing her/activating her Sabotage Supply Lines ability. That only occurs if you have the appropriate character(s) on the map before placing Sai.

When placed:


 * "Sai, you're just in time!" - Max/Juggernaut Max
 * "Hey, ninja lady!" - Jake/Tuxedo Jake
 * "Ya-haarrrh! Thee Bloons better start runnin'!" - Captain Cassie
 * "Hey, Sai! Can I borrow one of those flash bombs?" - C4 Charlie
 * "How's it goin', fellow ninja?" - Ice King
 * "What's up, Sai?" - Sam

When selected:


 * "*deeply breathes, then exhales*" (when annoyed)

After a while after activating the Sabotage Supply Lines ability:
 * "Not bad, Sai. I'm impressed!" - Supermonkey
 * "That was a-awesome!!" - Finn/Dungeon Finn
 * "Whoa, those were some mad skills!" - Princess Bubblegum/Warrior Bubblegum
 * "That was pretty hardcore!" - Flame Princess
 * "That was totally cool!" - Marceline/Hunter Marceline

TBA:


 * "Shhh..." (ability sound?)

Strategies

 * Sai has multiple uses.
 * Similar to Dirt Beer Guy, Sai can be used as a Spike Factory replacement. Put Sai at the end of the track and upgrade her to the Tetsubishi (Caltrops) upgrade.
 * Remember that Sai cannot pop lead without her Flash Bomb attack, so put someone as assistance to the (camo/regrow) lead bloons (eg. Max, Sam, Flame Princess). Her Caltrops can't pop lead even with Robo-Monkey Visor, can't even inherit pierce (amount of hits) and damage from trinkets and Instrument characters, better boost Sai's speed in case they as an upgrade matter a lot to you, use it as BAD damage, because it won't damage DDTs.
 * Sai can see camo bloons without any upgrades. Place Sai when the first Camo bloons appear. For the camo lead bloons, upgrade her to Flash Bomb. For regrow leads, put C4 Charlie or Max (Hot Tips) to assist Sai on them.
 * When MOAB-class bloons come, Bloonatomy would be a great option to upgrade Sai to.
 * Due to low base damage, Sai cannot defeat MOAB class bloons alone, so put Finn (MOAB Ripper) C4 Charlie (MOAB Mauler), Max (Weak Spots) or any other character that has an upgrade that increases damage to MOAB class bloons for assistance.
 * Sai is pretty mediocre for the first 6 levels but when she reaches level 7, she's a force to be reckoned with thanks to the Bloonjitsu upgrade. It allows her to throw 5 darts at once and massively increase her Attack speed (about the same as Lemonhope's Beautiful Melody buff, ). She is a great choice for late game players.
 * Suitable for Banana Replicator. Greatly benefits from Robo-Monkey Visor. Great with Snake Darts, speed trinkets and Missile.
 * Sai is great for ranging. If there is a loop or corner, she is better be put far away from track for her to be more range efficient. Make sure her caltrops don't do to waste if possible when placing her. Maximizing range and Caltrops efficiency for her may be not the most preferred thing to do though, so place her more depending on situation.

Trivia

 * Even though the Sabotage Supply Lines ability does not affect BADs, other characters can still comment on the Sabotage Supply Lines ability.
 * Sai is the only character (excluding allies) in BATTD who does not speak.
 * There seems to be a pattern in which the characters provide quotes for Sai. The characters who say placement quotes cost less than Sai, while those who say ability quotes usually cost more than Sai (except Finn and PB).
 * Sai is the only character who can detect camo bloons without upgrades or trinkets.