I'll add some images later

Jo-Jo Fighter:

In Brief:
Jo-Jo Fighter from Imperium games is a side scrolling platformer. It has positive reviews via the Steam community HERE

The developer gave away Colonization of the Moon back in March 2019 via Falcoware games.

You can see a video of game play HERE.

Introduction:
Jo-Jo Fighter is a 2D side-scrolling platformer.
You are a loner fighter who was thrown into the jungle. Defeat pirates, smugglers and bandits, get out of the dangerous jungle alive!

Features:
-The character has a variety of weapons: from a pistol to a grenade launcher
-Enemies are armed with different weapons
-The appearance and weapons of enemies are randomly generated.
Reference accessed HERE 30th November 2021.

The Game:
After a short play through, the following mini review was based on a Steam community members review called Moyana and was accessed HERE on the 30th Nov 2021. I've corrected some grammar, deleted some of the review and added more information about the game; basically using the original as a skeleton (I'm finding it difficult to concentrate due to a lack of sleep over the past several weeks).


The game has a pretty dynamic mechanic, with four different types of weapons (pistol, machine gun, shotgun and grenade launcher). Opponents are fast and aim their weapons accurately. They are randomly generated, so keep an eye open for them as they will fire immediately they appear on screen. Survival depends on reasonably quick reactions by you. Your characters health is good enough to take several hits before it dies. When this happens you have to start from the beginning of the level again.

The controls are simple and introduced at the start of the game (see controls section below for details).

The game is quite difficult due in part to the accuracy of the opponents good aim; so, it may be worth playing according to a different tactic, for example, try to shoot from afar (although the enemy will run up to you anyway), or by standing still but jumping (W)and squatting (S) to dodge the shots. However, this slows down the pace of the game significantly; whereas the game tends to set a fast pace with running speed and double jumps.

You can pick up extra ammo packs either from some barrels and from killing some characters. There are also health packs drop that will regenerate your health fully, but these are not common

Suggestion to the developer:

Reduce the enemy's Hit Points a little, I think this will help solve the above situation. Also add a music volume and display setting so that there is a choice in a window or full screen (Alt + Enter does not help). To increase the re-playability of the game I would also add more content for example more weapons, different opponents, and more levels. And it would also be nice to add a local cooperative so that two people can go through the same computer or a local network.

Updated reference by Whiterabbit, original reference by Moyana, posted 30th November 2021

Controls:
A = move left
D = Move Right
S = Crouch
W or Space = Jump
W+W = Double jump
1 = pistol
2 = Machine Gun
3 = Shotgun
4 = grenade launcher
Enter = Start Game
Esc = Pause or menu
LMB = Fire

Notes on Security

I scanned a zipped copy of the installed game using Virus Total and it found zero hits from ? antimalware engines.

The downloaded executable 'may' include some low level adware that only opens your browser once to Falcoware's home page after the game has installed and also places four shortcuts onto your desktop (which can be safely deleted once the game has installed).

The installation does NOT inject any malware into your system. When your browser is opened to Falcoware's home page following the games installation, it earns Falcoware games some money, part of which is given to the developer of the game for allowing the game to be given away free. Once you've installed the game, there are no more browser redirections. This is because Falcoware removed their installer over a year ago (that installer would show an advert for a game and then open your browser each time you played and then closed the game down.)

You can see the results of the scan via the following link:

https://www.virustotal.com/gui/file/d7b4ab918802044b351089ece9a51cdcc666ee756f6ed5e900e349fca550eabf?nocache=1