Here is an easy section to go over 1st.
That 1st part the Notice section simply lists upcoming and current events. It says things like server maintenance and such.
The Twitter Icon simply opens up a browser and takes you to the games twitter page. https://twitter.com/kof98umol
The next part is LOBI, hit it and it takes you to LOBI, which is some sort of gaming message board type community. https://web.lobi.co/game/kof98_ourpalm
In the CHAT section, if you hit that it opens up a chat window inbox, however there is a 2nd chat below this section as well.
Then after that there is the friends section, there is some cool stuff there.
Then the last section is Mail, this is where you get a bunch of awards. You get awards/rewards for all kinds of things.
Get the game for your mobile device. It is available in languages other than Japanese but not English right now. So you go to your respective App store and download it. I am not going to cover the Line installation because I do not have a Japanese Line account.
On the KOF98UMOL main Japanese page there are links to iOS and Google.
After installation and launch, the game may update before you start to play. In that case, there is a Shermie mini game.
The game has a somewhat long tutorial. Characters will pop up and guide you and tell you what to press to advance the story and game. The game is a lot of targeting, pressing and timing.
Just pushing the buttons targeted will get you until about Level 10 before you can start to freely play the game.
As you progress through the game and leveling up various things will unlock. For example, but not in order: leveling up character, boosting stats of character and equipment, shops, bonus type states and dailies. The game has all kinds of achievements and rewards. This actually makes the game easy to play without paying. There are rewards for leveling up, logging in, powering up, beating a level, etc.
When you play the stages and beat up an enemy you get all kinds of misc drops. Cash, scrolls, materials, treasures, cards, medals, car parts. These are all crucial for leveling up your guys and getting cash. Generally speaking, the scrolls are the only thing worth selling. Most odd parts are automatically sold when you enter the store.
Right now I am playing through the game for a 2nd time because my previous phone died. I plan on breaking down the individual sections of the game because there are so many of them.