Probably the largest collection of obsolete blocks in scratch! I have undefined/obsolete stacks, reporters, C-loops, and Booleans. All that's left is an undefined/obsolete hat and cap blocks.
All the blocks undefined (normal, single-input, multi-input, text-in-number-slots) - user id - loud? - for each - noop - incr counter - clear counter - scroll right - scroll up - align scene - x scroll - y scroll - set instrument - play drum - undefined (multiple lines variant) - while - all at once - hide all sprites - the -- block - undefined (reporter) - undefined ("WOW" block)