Ada is a playable character in the Resident Evil 4 Minigame The Mercenaries. She wears her outfit from Resident Evil 2 in Mercenaries. She is armed with a TMP, the Punisher Handgun, and the Semi-Auto Rifle, as well as three Incendiary Grenades. Ada is the physically weakest mercenary, with only 6.5 bars of health, but she makes up for it with the best speed and decent firepower. She excels in long range combat, thanks to her upgraded and scoped semi-auto-rifle, but once enemies close in, Ada is very vulnerable to attack. Ada lacks short range stopping power, and her only chance of escape is to spray a group with her TMP, use her Punisher to attempt to hit two enemies at once or try to use her incendiary grenades. She fights very similar to Leon having a fan kick for most enemies and a back kick for enemies on their knees similar to Leon's against Villagers.
When the stage bosses show up, Ada is quite formidable. The rifle deals enough damage to knock down the Chainsaw Sisters, stagger Gatling Man, and, when at long distance, eliminate Giant Chainsaw Man with 2-3 shots. However, Ada struggles in the fight with the Garrador. It is hard to focus on its weak point with Ada's weapons, and the best weapon for fighting the Garrador is her incendiary grenades.
Resident Evil: The Deck Building Game
Ada is featured as three character cards in the Resident Evil DBG, first appearing in the Premier Edition of the game, and later reappearing in Outbreak and Nightmare. Her first card's effects included Revealing the top of the Mansion without engaging the Infected or activating any of its possibly effects (Level 1) and exchanging her Buy for an additional Action (Level 2). She has 80 Health and is based on her appearance in Resident Evil 4.
Her second card is based on her appearance in Resident Evil: Darkside Chronicles, and has only 70 Health.
Her third and most recent card is taken from her appearance in the Death's Door scenario of Resident Evil: The Umbrella Chronicles. This incarnation of Ada has effects that relate to her Health. Her Level 1 effect states that if she takes damage, the player can draw two cards. Her second effect makes her quite durable compared to the other characters, stating that if her health would be reduced to 0 or less through damage, set it to 10 instead. This makes Ada the first and so far only character with 70 Health able to survive attacks from the boss Infected of each set; Uroboros Aheri, the Infected Albert Wesker, and Tyrant (T-002 Model). In addition, she's also the character with the highest necessary Decoration count to use her Level 2 effect (10) as well as having the largest gap between the effects' necessary amounts.
Resident Evil 6: The Mercenaries
Ada reappears in The Mercenaries for Resident Evil 6. Her loadout consists of the Ammo Box 50 and her Crossbow, packed with 60 rounds of bolts and 30 rounds of explosive bolts. She also possesses three incendiary grenades and eight health tablets.
Ada's loadout is considered to be one of the weaker ones in The Mercenaries. Her Ammo Box 50 is unwieldy and not particularly powerful. While her crossbow is extremely strong and can easily take down bosses, score instant headshots on regular enemies, and set up 5 second melees with quickshot, it is a slow weapon. Where Ada shines, however, is in her melees; her coup de grace and counter are considered to be one of the fastest and most useful in the game and she can easily take down scores of J'avo by quickshotting (or aiming at the head), sliding and then coup de gracing for the kill.