Again, just pick some questions...
Achievements and Ranks
Ranks could not precisely reflect how well a player performs. In FFA, you can climb up your rank rather easily, especially there are lots of sub100# pros.
Shortcuts
As far as I know there is only one shortcut "/me", just a chat-assisting command.
Stats
Score = The score you gained in the room, quitting the room and re-enter will reset it.
* The score is awared based on the number of player(s) who top out before you.
e.g. In a 5-ppl room, you gained 4, 3, 2, 1, 0 pts for attaining 1st, 2nd, 3rd, 4th and 5th respectively
BPM = Blocks per minute, over the last game, equal to the speed meter on the lower-right of the playfield
Cmb = Max Combo in the last round.
SPM = Send per minute, the attack you sent to the opponent in the last game, divided by the time elasped
Blocked = Lines you blocked / Lines sent to you
Profile
You can right-click players' playfield to see their profile
You can change your avater in the website
The flag of country/region is based your IP address
Registered users are automatically assigned a rank, while guest users would not have a rank
Multiplayer Modes
FFA, Survivor and Cheese. See Harddrop Wiki for more info
Chat & Room
Room chat can only be heard by the ppl in the room, while lobby chat could be heard by the all online players (including guests)
Click "Create Room" to make rooms, you can configure the name, the mode, the speed limit, etc. before creating it.
You could set the room to "private" (auto-join players) in settings under the score table, you can also reset scores, force start rounds and assign player(s) to join here (by right clicking the avater)
There is a "Rookie playground" for newcomers, speed capped at 80BPM, overspeeding would result in decrece in the height of playfield.
Contact
You may join the discord, whose server link is posted in the "Lobby" Chat
Gameplay
Again, CultrisII is non-guideline, therefore there is no hold.
180 spin is more crucial in C2 for it can sometimes save you from bad stacking.
You would not receive lines when you are attacking, or you can counter them before they enter your playfield.