Inzektor Hopper

The effect "Once per turn, you can equip 1 'Inzektor' monster from your hand or Graveyard to this card as an Equip Card" is an Ignition Effect that activates on the field. (It does not target.)

The effect "While this card is equipped to a monster, that monster's Level increases by 4" is treated as an effect of an Equip Spell Card. (It does not form a Chain Link.)

The effect "You can send this equipped card to the Graveyard; the equipped monster can attack your opponent directly this turn" is treated as an effect of an Equip Spell Card. (It does not target. When activating this effect, you send the "Inzektor Hopper" being treated as an Equip Card to the Graveyard as a cost. Also, it can only be activated during your Main Phase.)

The effect "The equipped monster can attack your opponent directly this turn" cannot be activated during a turn in which you cannot conduct a Battle Phase, such as the first turn of the duel, or during Main Phase 2.

"During the turn you activate this effect, monsters other than the equipped monster cannot attack" is not treated as an effect.