Fox's Reflector spikes with any part of the hit box.
Ike's d-air only spikes with the first frames, it becomes a normal hit shortly after the blade is fully extended downwards.
Kirby's d-air spikes with any part of his body.
Zero Suit Samus's Flip Jump spikes with any part of her body, not the toe. However, like Ike's, it only spikes during the first active frames, and only against airborne opponents. Likewise, her d-air only spikes airborne opponents; grounded opponents get knocked sideways rather than bouncing off of the ground as you'd expect.
Ness's d-air also spikes only during the first active frames, though the ratio of non-spike frames to spike frames is very low.
Falco's spikes with any part of the attack, bur only during the first active frames.
What the heck's a semi-spike?