This is a paid asset, but now you can download Metal Black OPS for FREE, but please remember this package is provided only for learning purposes or to be able to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Detail this asset from Unity Store: Original Link
Metal Black OPS v1.0
Metal Black OPS is a 2D mobile shooter centered around an army of mercenaries trying to finish their mission to save the world, then go home and take a well-deserved nap.
Choose your commando, purchase an arsenal of powerful guns and grenades then blow EVERYTHING up.
Features
– Unity 2019.2.9f1 (64-bit) or higher
– 5 worlds and 24 stages
– Over 25 enemies and 5 boss
– In-game tutorial
– Daily login reward
– 2D side-scrolling shooter game
– More than 22 types of upgradable heavy and light weapons
– Achievement
– Daily quest
– Upgrade skill
– Auto-unlock new ingredients, characters and power-ups by progress
– Special bonus levels for extra coins and even more fun!
– In-App Purchase
– Smooth and good effect
– Cool sound effects
– Good animations
– Login Facebook
– Rate integrated
– AdMob (Interstitial, Video Reward) and Unity Ads (Video Reward) integrated
– Firebase
– offline (game does not require internet)
– This is a big game and support for iOS and Android
– Lifetime tech support and project updates