Use the keyboard for Japanese!
Using the keyboard is essential for memory! If you are on a PC/computer/laptop etc. please use the keyboard, it allows for much better memorisation in a method similar to SRS (Spaced Repetition Strategy/System). Having the words right in front of you makes it a lot easier, like multiple choice questions. If you are up for the challenge, the keyboard is better because you learn the Kun'yomi and On'yomi for Kanji which will allow you to type them out in sentences (e.g. 私の名前は何ですか？) and you are forced to remember particles and sentence structures.
Of course, this is just an opinion! Comment your opinions (Agreements/Disagreements)!
Thank you! ありがとうございます！よい一日を！ - Damland
I made it to the third gate by using the word bank (most lessons at level 3). At that point I felt like I hadn't really learned anything. I then started again from the beginning of the tree, moving up to level 4 using the keyboard. I also started putting the kanji into Anki as Duolingo presented it to me, and I study that every couple of days now as well. I feel like I'm retaining more vocabulary - I still appreciate the primer questions at the start of each lesson though.
I'm using Gboard on Android and can't figure out how to type numbers in Japanese. I can type the Arabic numeral and it works but I'd like to type the actual character.
Edit: I figured out that if I use Hiragana to spell out the number names, then the Kanji characters show up among things I can select.