For this symbol, ß, accept 'ss' as I literally don't have that button like most people and I believe the two are somewhat similar sounding. Also for verbs in the infinite like 'schreiben' add type-ins to accept just 'schreib'.
The answers switch back and forth between familiar (du) and formal (sie). Heissen, not hissen. Wie, not wi. Wie, not wis. Why Achtung istead of Gefahr? We were taught to say "Es geht mir gut" instead of "Ich bin OK", but maybe things have changed in the last 40 years.